Do you know, is this another tax additional to “blankmedieafgiften” (“blank media tax” or “private copying levy”), or is it the same tax under a different name?

It’s off by default, it seems, in version 1.10.4 RC1 from F-Droid. At least, I went to toggle it off, but it was already done.

Note, I tried rejecting the ToS st the first run, which just closed the app. So… I accepted them at the second run… Though, I don’t know if that in any way really could have affected the setting.

I installed 1.10.4 RC1 from the F-Droid repo (mine is just .4, not .04).

Maybe they did something in their build to remove Google and make it work without it? You could try that one.

I’m running it without any Google services (on this user profile), not even sandboxed. Would it not work for you when attempting, or have you just seen or heard somewhere that it wouldn’t?

No biggie, but reading the ToS in the app, it states that the app will send anonymous usage data to Google. I’ve disabled its network access (possible on GrapheneOS), and it works anyway. On this topic, the description in F-Droid reads:

Do I need an internet connection? No, but some functions (like entering your location manually) won’t work without one. You’ll have to use the GPS or enter a latitude and longitude instead.

Here are some alternatives to look into: https://slrpnk.net/post/15456722