Splitgate 2 has been working hard to fix their server issues. Fortunately, the game play has been fantastic, even when there were other issues. They enabled support for Proton on Linux! It runs good, but not quite as well as Windows, yet. They've also fixed the XP issues, sometimes with a progress delay, and are working on Challenges. Some Challenges are beginning to work, but some aren't counting correctly or are possibly delayed. I've had no login errors, no crashes (even on Linux), and it's been nice to finally make XP progress (currently you get a double XP bonus).