I’ll just put it here:

Use ProtonUp-qt to install Glorious Eggrolls’ Proton GE.

Things it contains that Valve’s Proton does not:

• Additional media foundation patches for better video playback support.

Also i think there may have been a couple games ive tried where proton-GE didnt automatically fix this. In that case, use winetricks and install the full video codec package. A combination of those two things have solved this issue with every game ive tried.

put’m up in pertube.