I have issues to obtain the CamAPS FX apk to debug, but I don’t think the location permission can fix anything, it will still do the Play Integrity API checks.
There is a semi recent thread without a conclusion. If you can relock your device you very likely improve the PIA rating (lemonadep docs says unspecified, but new onepluses should be able to do avb custom. Edit: this isn’t encouraging though).
(/e/ v3.1 will also start to hide some build strings from regular apps to not trip them up, but without debugging I can’t say if CamAPS cares about this, atm I don’t assume - it’s only the PIA rating)