supersonic Hi there! I just installed this app to test it out for you.
I was able to using it without the network permission, and I was also able to use the storage scopes feature instead of granting it the normal storage permissions it needs, so that's a privacy win!
In case you're unaware of what GrapheneOS's storage scopes is or what it does, you can read more about it here:
In general, pretty much every app will work great on GrapheneOS. :)