if there’s a legal requirement to delete the data, I’d try to take advantage of that

There’s like no countries with strong enough data laws that would guarantee full deletion

Afaik in the app there isn’t. I think the actual photo data bytes do get deleted but some other crap generated from the ML models ran on them stay. Databases are also constantly replicated and snapshotted multiple times for all Google services and I have no idea how long those last either