This game is available in different languages. I'm using the Offline-Installer, but can't find an option to change the language. It's always English.

I already checked the troubleshooting from GOG:
https://support.gog.com/hc/en-us/articles/12503141750941-GYLT?product=gog

- The Offline Installer doesn't have an option for "game language".
- I can't choose a different language in my game library (where you download GOG Galaxy or the Offline Installer).
- I checked the ingame menu (before and during the game). There is an option "language", but I can't change anything, except subtitles.

Is there any way to start the game in a different language? Any config file or parameter to start the .exe?

Edit: If you start the game, the option to choose a different language doesn't appear. However, the option suddenly appears after you played 2-3 minutes of the tutorial.