Sigh, /e/OS.
Your phone is running proprietary Google DroidGuard blobs in a privileged process every time an app initiates a Play Integrity request.
If you install some Google apps like Google Maps, they are run with more privileges than other apps (their microG fork gives apps elevated privileges when they match certain Google signing key fingerprints).
Also, your device is running a firmware bundle provided by Fairphone's Chinese ODM, including TCL image processing blobs. Your phone will soon run an ancient kernel and firmware tree with many known critical CVEs.
But this all doesn't matter anyway, because security hardening is only for spies and pedophiles according to the CEO of Murena (the company that makes /e/OS).