I have for the past half year. I don’t have numbers, but rolling with the NVK vulkan driver (context for the unaware [1]) on mesa’s main branch gets me somewhere around half the proprietary driver’s performance on average, and can be accompanied with stutters if it is a heavy bottleneck (turning down the resolution is an easy way out). Most games I’ve tried are runnable now.

It sounds like you’re looking for more performance with this post though, so you’re likely not going to see improvements taking this route. I would still suggest giving it a try for people that are able and can tolerate the sacrifice. It’s good enough for me (and better in the wayland case) that I rarely swap to the proprietary driver anymore.

Mesa has a tracker issue for games on NVK [2] [3] with reports about game statuses and issues from the past 5 months. It includes playable and unplayable games for those interested in gauging its usability.

Also, for the record, NVK is no longer considered experimental as of mesa 24.1 (May of this year) [4].

[1] https://www.collabora.com/news-and-blog/news-and-events/nvk-has-landed.html

[2] https://docs.google.com/spreadsheets/d/1RuHD3Z_nBKCp618HHC5I9hOu0lqCoFYwQ4FM69M-Ajg/edit?gid=469568508#gid=469568508

[3] https://gitlab.freedesktop.org/mesa/mesa/-/issues/11066

[4] https://www.collabora.com/news-and-blog/news-and-events/nvk-is-now-ready-for-prime-time.html

They're talking about this Squad.

I haven't gotten around to trying the stable release out, but there's one ProtonDB report - presumably for 6.0 given the post date - so far that says it works flawlessly.

I'm guessing the situation is the same as pre-6.0, though. I participated in some of the playtests, where I got the same performance issues that I got before with the game slowing to a crawl after some time. The user on ProtonDB also has pretty beefy specs, so I couldn't say if the performance issues were fixed, either. I'm not sure if you're asking if it's playable or has gotten better, so I will say that (at least for pre-6.0) it technically works regardless as long as your computer is beefy enough.

The Proton GitHub issue for Squad might be nice to bookmark to make or check up on every once in a while; usually any issues, fixes, and updates end up there.