While there has been a lot of progress with the Windows compatibility layers Wine and Valve's fork Proton (part of
Steam Play), there's still plenty of areas currently lacking and needing work.
Collabora is one company extending the Linux Kernel to improve Linux gaming with these compatibility layers, thanks to Valve sponsoring the work. One of the big missing pieces of the pie is supporting the likes of anti-cheat and DRM, with anti-cheat especially causing all sorts of problems entirely breaking lots of Windows games in Wine and Proton.
The State of Linux Gaming talk was mostly going over what anyone following would already know, as the event isn't aimed at your typical Linux gaming enthusiast. However, it was still an interesting talk to follow. Thanks to The Linux Foundation, I was able to attend and listen to the talk (the online event requires a ticket purchase) but I've been told by my Collabora contact that they will all eventually be up on
their own YouTube Channel which could be as soon as early next week for anyone to be able to view.
If you want a brief overview, you can find
the slides here from
the event schedule. One of the key points that Gabriel Krisman Bertazi went over is their work on system call emulation, which is now required because DRM and anti-cheat tech "are issuing system calls directly from the Windows game code and that bypasses Wine because Wine is not a sandbox" and Wine currently cannot capture those system calls needed which ends up causing games to crash.
https://www.gamingonlinux.com/2020/...indows-game-emulation-in-kernel-5-11#images-2