Warframe is good for this. Lots of ways to tune your level of engagement through build choices. Most content rarely requires your full attention and story is only progressed in specific story missions that you usually play only once.

Unpacking, Everything, A Little to the Left, Gorogoa (if puzzles are chill for ya), and Spiritfarer are a few that come to mind.

Astroneer is pretty low stakes, I played it mostly while listening or watching other things

Superflight

I love ARPGs for this. Path of Exile and Last Epoch both have a highly repeatable endgame where you can just put on your media and blast maps/monoliths mindlessly for a few hours

Two casual-adjecent games I played a lot over the past week are Mini Motorways and Inscryption: Kacey's Mod.

The first one is like a simplified city building simulator that works more like an evolving puzzle, you just build roads to connect houses and buildings of the same color while trying to keep traffic moving along. It might sound overly simple but it gets hectic and intense incredibly fast.

The other is an expansion to the original Inscryption game, which was a roguelike deckbuilder with a horror-ish spin that, no spoilers, went places lmao. What the expansion does is essentially take out all the story and convert a specific part of the game into an actual endlessly repeatable roguelike. It's challenging, but very engaging, and the presentation is just 10/10.

Honestly a game called Carto. It’sa very relaxing game where you don’t battle, you don’t die and there is no “fail and restart scenarios”. It’s isometric puzzle adventure game where you can change the level you are exploring by literally going to the map screen and then rotate and move the map tiles around.

The point of the game is to collect more map tiles so you are able to fit them together in a way that solves the level and you move on.

It’s great.

TBH Minecraft Parkour in the Hypixel server's housing area are good for this. I usually play one until I starts getting hard/finish then switch to the next one while I'm watching YouTube.

Dead Cells was my go-to podcast game for quite a while! Story tidbits are few and far between, and it’s more about finding your stride in subsequent runs. There’s a lot of DLC that often goes on sale too.

Kartrider is a well developed Mariokart like game that is basically on all platforms (except Switch obviously).

https://www.youtube.com/watch?v=iQjON7OX63M

Pokémon, via emulation.

I'm playing Ultra Moon on the Steam Deck and it's wonderful and chill.

I love to play from time to time Banished with podcasts. Once you figure out how to survive then it's just "how much can I build on a map before my PC explodes".
Ostriv seems nice too, but it's still in alpha, so weird things happen like villagers going out to buy candles or soap and returning with shoes.