A new software update is available: GE-Proton7-44 released
The most recent DVXK/VKD3D git with HDR patches, changes to the proton upstream, and various proton fixes are included in the most recent version of GE-Proton that Thomas Crider just released. GE-Proton is a fork of the Wine based Proton compatibility tool for Steam Play.
Read more @ Linux Compatible