I bought myself a OOONO bluetooth device and tried to connect via the app.
It wasn't working on my GrapheneOS main profile so I tried it on my 2nd profile which has all Google Play services installed.
It works on my 2nd profile, so I thought there is a dependency.
So i tried installing the services on my main profile and it still doesn't work there.
Do you have any ideas why? Could there be other dependencies?
I also had issues connecting with my main profile to other bluetooth devices, but it works in general.