@stavpup @TimothyRoes @pojntfx @jolla Some banking apps work or just show a warning if they detect that the device is running on something other than Google-approved devices because the developers "gratuitously" haven't explicitly blocked that option. Also, quite a lot of them still require MicroG to work (and these are still Google services connecting to Google servers - just with foss implementation). Yes, the MicroG has Basic Play integrity check reporting, but the vast majority of "secure apps" which lock you out of using that app are utilizing Device Integrity and/or Strong Identity that you can't reliably fake. Existing workarounds (which are android-specific, require rooting your android device and installing few modules) are often patched by Google which breaks the spoofing. If developers decide to block "non-official" devices without Google Play Device Integrity/Strong Integrity (the latter one, especially), there's not much you can reliably do.