It works for me now by starting from the commandline, avoiding the launcher!

What I did so far:

Attempt to start the game in steam. This will install everything you need in the compatdata directory.
Open a terminal
> export STEAM_COMPAT_DATA_PATH=<STEAM_LIBRARY_DIR>/SteamLibrary/steamapps/compatdata/1086940/
> <STEAM_LIBRARY_DIR>/SteamLibrary/steamapps/common/Proton\ 5.0/proton run /<STEAM_LIBRARY_DIR>/steamapps/common/Baldurs\ Gate\ 3/bin/bg3.exe

Once the game starts I had to change the graphics settings to windowed for the game not to crash my PC.
Haven't tried much yet, I chose a default character and skipped the videos, but the videos do seem to run.

[Linked Image]

Last edited by JohnW; 07/10/20 11:32 AM. Reason: Works?