Divinity Original Sin 2: How to Fix Linux Startup Crash

Here is a simple tutorial on how to fix the Linux Startup crash.

Larian Studios made an unnecessary new bloatware ♥♥♥♥ launcher for the game and in the process broke the game on Linux.

To fix it, open a terminal, cd to the installation directory:

cd ~/.local/share/Steam/steamapps/common/Divinity\ Original\ Sin\ 2/

Then run the following commands:

mv ./bin ./bin.bak
ln -s DefEd/bin bin
cd bin
mv ./SupportTool.exe ./SupportTool.bak
ln -s EoCApp.exe SupportTool.exe

Thanks to Ordon for posting this information (originating from protondb)