Yeah, we have a couple of Steam Decks over here too, but I've mostly been playing SF6 on my Linux desktop. (Fedora with an AMD GPU)

I agree sf6 is really well optimized (it also runs great on deck).

World Tour Mode is a bit chunky at times, but from what I understand it's just kind of like that in general. I also don't think the mode is that great. As for online play it's perfect. :)

I hope Tekken 8 is the same, as that looks to be a big visual jump from sf6.

Yeah. For what it's worth, Tekken 7 runs like a dream on Linux, though I'm not as experience with Tekken as I am with SF in general, so it's a little harder to tell.

Strive works perfectly these days (had a couple glitches with it when it first came out but those have since been resolved), and a bunch of classic fighters like Xrd, SF4 and MvC3 work perfectly too. Sometimes you have to watch a couple replays for shader compilation hitching to resolve, or at least that was the case last time I went through and tested a bunch of games.

What controller do you play sf6 on?

We have a couple of Qanba Eightarc Fusion fightsticks from the PS3/360 days that are plug-and-play on Linux. I think I usually have them switched to the Xbox360 mode, but I'm not even sure that it matters. (Unfortunately one of the sticks finally lost the down switch last week so I'm waiting for some parts to come in.)

But yeah, generally Linux gaming is pretty much where it needs to be for me. That might not be the case if you're into heavy RT games with a top of the line Nvidia card or stuff with really strict anti-cheat, but for me I basically never boot over to my Windows partition anymore for gaming.