Blizzard is desperate here. Am I right in thinking this is the first time they've put anything on Steam?
Enjoyed Overwatch back in the day, i.e. when it was new; but really not a fan of them reducing team sizes to make it a more conventional "fit" with other 'esports'.
Got a bit carried away, but hopefully this is useful to somebody:
The Steam Deck is surprisingly versatile, especially now Valve have released the dock (enabling portable monitors). The most obvious benefits over a gaming laptop (beyond the price) are the smaller form-factor and relative quiet compared to a strong gaming laptop.
The main thing you should ask yourself is what you want to play.If your answer to that looks like "Crusader Kings III, Dota 2, and the latest competitive shooter", then it might not be the best choice. But in general, you'd be surprised by how many games work great thanks to its extremely versatile input options.
Games that released before controller support on PC was mainstream -- such as Oblivion, S.T.A.L.K.E.R., Deus Ex, or Baldur's Gate -- typically play fine thanks to its extensive input customisation (including custom radial menus), its dual trackpads and gyroscope, and the community layout system. There are exceptions where you'd want a keyboard and mouse, but not as necessary as you'd expect.
Beyond info on software compatability, ProtonDB also includes Deck-specific reports at the top of each page detailing others' experiences, such as whether they used a specific community layout or input method, performance under specific conditions (such as limiting power or frames to conserve battery life), and legibility on a smaller display. The wealth of shared controller configs is easily one of the greatest strengths the Deck has.
(And while other, more recent -- albeit more expensive -- options have stronger performance at higher power settings, the Deck has a strange persistence in outperforming its competitors at low power settings (source).)
Again, it's mostly down to what you want to play. If you want to play recent releases with all the bells and whistles enablesd, you'd need to pay for a laptop many times the cost of a Deck (desktops less dramatically). Given you're even considering handheld PCs I'm assuming that's not your priority. Cyberpunk and the ever-demanding Red Dead Redemption 2 have been in the top 20 most-played games on Deck since Valve started publishing that information, so simply playing them isn't an issue. (The top 100 games for 2023 by daily active players can be seen at the bottom here.)
To address some specific games and genres: If you're into MOBAs, League and Dota play fine but you'll want to be using a keyboard and mouse, while grand strategy games would at least warrant an external display.
If you want to play the latest CoD multiplayer, Valorant, or the upcoming Tarkov Arena, you should probably get a laptop. (You can install Windows on the Deck, but I can't speak to that firsthand.) The trackpads themselves are viable for FPS games, though a learning experience, but the main issue here is that most developers haven't enabled the option for their anti-cheat to work on Linux. Hunt: Showdown is a happy exception to this trend.
If you want to play MMOs, it'll depend heavily on the individual game. FFXIV has excellent controller support out of the box (Gabe Newell spent covid playing it on Deck), Path of Exile added strong controller support to improve experiences on Deck, and ESO reportedly runs great. People have made Guild Wars 2 work, as well as WoW via the impressive ConsolePort addon, but it won't be as clean an experience. The more niche, the more trouble it'll be. The problems here are universal to handheld PCs, and with MMOs you also need to consider whether you'd need a keyboard for social reasons. The Deck's on-screen keyboard is pretty decent, but it's not going to be a substitute for a real keyboard.
Almost any singleplayer RPG, FPS, or adventure game can be made to work just fine. Emulation has EmuDeck and can play most older games -- assuming general emulator compatibility -- up to some PS3 titles (like Demon Souls, Kingdom Hearts HD 1.5 Remix, or the MGS HD Collection) and even a lot of Switch titles. Traditional roguelikes include many among the few 2D/singleplayer titles that don't simply work out of the box. Yet a substantial number play great (e.g. Jupiter Hell, Tangledeep, Shiren the Wanderer, Caves of Qud); and many others have community layouts already so you don't have to take the time to set one up yourself. It was learning that Dwarf Fortress played fine on Deck that opened my eyes to just how flexible the chunky little handheld can be.
I hope that helps in determining whether the Deck suits your personal needs; if there's any angle I didn't cover adequately that you have questions about, please feel free to ask.
Edit: Slight clarification, re: "Almost any singleplayer RPG, FPS, or adventure game" -- this year, many multiplatform games have released on PC in a poorly optimised state, and depending on your personal tolerance the Deck may struggle to provide an adequate experience for them. Though it's hard to give a recommendation in one direction or the other without knowing your budget, as such titles are often found lacking on even the newest consumer desktop hardware (hardware very few laptops can compare directly against, and so many will suffer these issues in a similar manner). A relevant Digital foundry video: https://www.youtube.com/watch?v=oav-pZyA8y4
It’s almost certainly a positive to see Bobby Kotick (boy do I struggle to maintain this site’s cardinal rule as far as he goes ) losing influence in the “AAA” games industry; but it’s not good to see MS buying every studio they can get hold of. Both these things can be true simultaneously.
My biggest concern with MS’s rampant acquisition spree is what happens when there’a an economic downturn (as already seems to be the near future); will those newly acquired studio be subject to the corporate euphemism that is ~dOWnSiZiNg~? How many working on moderately niche titles will be out of a job and their work indefinitely shelved?
I haven’t played the Castlevania one yet (I know, shame on me), but wanted to second how seamlessly the rest are integrated into the game.
I understand people's attachment to their community, but if even a significant minority of those who went dark mass resigned on the 30th, it would've had so much bigger an impact than any of the ongoing attempts at protest.
It really is hard to fathom how that got through any internal discussion.
Another executive-driven decision by people who clearly don't use their own product (kinda impressive really when it's YT).
I can't help wonder if they saw an uptick in adblocking as a result of their absurd increases in ad-time recently and somehow thought this was a reasonable solution.
Yeah, I've known plenty of antifascists subscribed to, or otherwise technically "members" of awful online spaces just to keep an eye on things.
No kidding, everything is heavily downvoted and 99% of the posts are incredibly lazy memes by its creator, 'LEFTWINGTEARS', who beyond the name and banal posts, has a meme that was already tired years ago as their user img.
Kinda seems like a stretch to even say that that community is being hosted there, given it's almost entirely just one very bored person. (Would be surprised if they were even 16 years old.)
Don't know where you live, but my experience of NL is that everyone and their dog did things via WhatsApp. Even government services, would absolutely struggle to abandon all things Meta-related entirely while living there.
Correct me if I'm wrong, but since ETH moved to a proof of stake model rather than proof of work (i.e. "mining"), isn't its environmental footprint now a fraction of the wasteful behemoth it was previously?
(Though I 100% agree given the 'gas fees' (transaction costs), it's still absolutely useless as an actual currency.)
Immersive sims that aren't combat orientated (though tbh I would take just-more-imsims).