Oh wow, I downloaded that old patched version (Standalone-1.0.36.344) looking at the install script and it seems to be working correctly!
I guess when I tried installing it from Lutris it automatically used the other method, which downloads the latest version of the Rockstar Launcher that seems to be broken.
Now I need to wait about 2 hours to see if GTAV works correctly, but this is awesome, thank you very much!
Have you tried the standalone version of the launcher on the Lutris website?
Hope you'll get it sorted.
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