Well, I’d love to help, but yesterday I uninstalled com.google.android.ext.services, com.google.android.ext.shared, com.qualcomm.location and com.qualcomm.qti.optinoverlay, and now my phone doesn’t boot anymore…
These are all packages that apparently can be uninstalled on the FP3 without any problems (see here and here), but it broke my FP4. I hope that I can fix it without needing to reset the device completely, since I already copied some data on it and I don’t want to set up everything again.