The Latest Proton Update from Glorious Eggroll is now available bringing GE-Proton to 21.
Main Fixes include:
Backported wine bug fix patch 56653 for GetLogicalProcessorInformation, fixes edge case crash on some systems for a few games, notably baldurs gate 3 and divinity original sin 2 (thanks mx-moth)
Add fix for dirt 3 outside of steam (thanks polluxau)
Added fix for Teenage Mutant Ninja Turtles Shredders Revenge (thanks FranjeGueje)
Add fix for The Callisto Protocol (thanks FranjeGueje)
Add fix Bright Memory (thanks loathingKernel)
Disable Esync and Fsync for Supreme Commander (thanks UsernamesAreNotMyThing)
Added protonfix for SteamDeck=1 for Dauntless on steam
Upstream versions were also updated to the latest versions for dxvk, wine, vkd3d and mono.
You can see the full patch notes on the GE-Proton Github