Spoke to soon. Here is logging of the issue occuring with 6.3-1: [steam-673130.log](https://github.com/ValveSoftware/Proton/files/6257357/steam-673130.log)
@kisak-valve I've been able to reproduce the issue today with 5.13, but switching to 6.3, I have not been able to reproduce the issue in a few hours of play time. As such, I dare to conclude that with 6.3, this bug is fi...