Nice to see this. Worth noting that a lot of Windows (or DOS) games past may also not run well on current Windows versions. The anti-cheat issue is likely to persist for at lest a few more years... though I think the relative success of the Steam Deck itself has moved the bar significantly in terms of demands for support.
I do think there's a few hiccups still with Linux support. The shift up to 6.16 kernel has itself resolved many of the issues I'd been having in the past. If you're on an older LTS that hasn't moved, you're likely to see more issues than with a more current distro.
> Worth noting that a lot of Windows (or DOS) games past may also not run well on current Windows versions.
To be fair, anything old that wasn't famous has a decent chance to be broken under WINE too. It might just be a single call to some obscure animation API or something, but it can be enough to break the entire game.
I do think there's a few hiccups still with Linux support. The shift up to 6.16 kernel has itself resolved many of the issues I'd been having in the past. If you're on an older LTS that hasn't moved, you're likely to see more issues than with a more current distro.