Found it:
- Go to:
<…>\Cyberpunk 2077\r6\publishing\x64
-
Create a copy of the “GOG” subfolder next to the original one.
-
Rename the copy of the “GOG” folder to “null”
-
Go to:
<…>\Cyberpunk 2077\bin\x64
and delete the:
GameServicesGOG.dll"
https://www.gog.com/forum/cyberpunk_2077/a_fix_for_the_crashing/post70
Lifehack for you: since it worked out this time, you can wait even longer next time