If I remember right, a problem with this is that you need to get those proofs by submitting your id or similar, you only get a limited amount of proofs at a time, they expire in maybe a few months, and you can only get them using a government specific app that is only for "secure" devices. Instead of being tracked by the site you're being tracked by the government, you now need a Google Android phone in order to browse adult sites on your PC, and depending on your habits you may need to re-show your id potentially multiple times a day unless you opt to being tracked by the sites instead.

It really should be just once that you need to show your id and then you should be able to generate as many proofs as you need whenever you need on any computer device, but they have an obsession on making very sure that it cannot be circumvented, as if it was insanely important.

Isn't .dev a TLD operated by Google?

How European can it be?

This looks like a private consortium of usual suspects Tales and T-Systems squandering taxpayers money, not an official thing.

Hasn't this been made "optional", aka not going to happen, in the digital wallet specification?

That page says ZKP are a "future roadmap" thing, to be maybe possible wink wink maybe implemented int he "future".

Currently, it does not implement ZKP, and further requires proprietary Google Play Integrity use, making it an absolute toxic cesspool.