For quite some time now, there's been a few troubles for Counter-Strike: Global Offensive on Linux with players Trust Factor being severely reduced. Now though, it looks to be finally solved.
Going back since at least January 2021, users have been reporting an issue with Mesa drivers (Intel / AMD GPUs) that has seen their CS:GO Trust Factor drop sharply. This is unrelated to another issue that appeared recently, where practically Linux and macOS players Trusted Mode didn't seem to be working - which was quickly solved by Valve.
People speculated on what the cause was, which caused the Mesa driver developers to end up disabling "glthread" (OpenGL multithreading) for CS:GO. Thankfully though, it looks like Valve have managed to actually solve the root cause of the issue.
A user posted on the bug report to note they emailed Gabe Newell, and got a response from another Valve developer Ido Magal to mention "We've found the underlying issue and believe it is fixed. Please confirm.". Since then, it seems multiple people have confirmed their Trust Factor is now back to normal.
Nice to see Valve continue to work on their Linux ports and keep them running nicely. This one sure took a while though but it's very pleasing to see considering how many gamers it affected.
You can play CS:GO free on Steam.