well, they tell you they hold data for up to 7 years for legal reasons, but I deleted this stuff about 10+ years ago.

Unfortunately, Facebook build data profiles for non users too, so they can continue tracking based on crappy face detection or people being tagged in photos. I don't really know if it's even worth trying to sue, because they could "accidentally acquire" info about you from data brokers when they buy in bulk.

However, it never hurts to minimize what they have access to!

There is no way they’d ever actually delete it unless there were actual consequences, and there aren’t , even when the law is followed.

One place I'm familiar with actually just deidentifies data when they say they delete it. They also have ways to re-identify if needed.