


protontricks -c winecfg 1985420
Graphics -> Emulate Virtual Desktop (2560x1440)
Screen went blank when game was focused but would render in the background when unfocused. Was able to toggle to Windowed by having another window focused but every click required alt-tabbing back out. Emulating virtual desktop with winetricks also fixes

As of the full release this game looks and runs great. I am able to hold 200-240 FPS on Ultra settings and haven't experienced a single crash!
-d3d11
Until today, I would get game crashes with LowLevelFatalError randomly with any version of GE or Proton. Found that adding launch option -d3d11 and using GE 8-1 seems to have corrected this, but I'm still early in testing. Cannot find any further issues.
Needs to be in windowed mode to start, otherwise it will crash.
Game has to be kept at 60FPS with no vSync or else you can't load into a match.
Keep the defaults, and you'll likely be alright. If you modify the FPS or enable vSync, UE4 will crash when loading into maps. I set it to windowed mode at 60FPS and it let me load in. Anything above that, and UE4 would crash, even though my hardware is fully capable.
After playing the game for a longer amount of time, with multiple updates to the game, I can say it works just fine!
Was able to play the game for hours without any issues!