My impression is that they are against remote attestation in apps/websites in general and if apps really want to do it, they should do it using the attestation API that AOSP already provides. The attestation API in AOSP allows companies to trust signing key fingerprints (such as those of GrapheneOS), which means that the attestation system is not controlled by a single company (Google).

The most damning part about Google Play Integrity is that, as the thread states, that Google lets devices pass that are full of known security holes, whereas they do not allow what is very likely to be the most secure mobile OS. This shows that they only use it as a method to shut out competitors and to control Android device manufacturers to pre-install Google software like Chrome (otherwise their devices do not get certified and won't pass Play Integrity).

IANAL, but anti-competition lawyers/bodies should have a field day with this, but nobody seems to care. Worse, the EU, despite their talk of sovereignty adds Play Integrity-based to their own age verification reference app.

I recommend every EU citizen, also if you do not use GrapheneOS, to file a DMA complaint about this anti-competitive behavior:

https://digital-markets-act.ec.europa.eu/contact-us-eu-citiz...

Also, every time this comes up, @ the relevant EU bodies, commissioners and your government's representative on Mastodon, etc.