There should be a law about what "delete" means for online services. I used to delete old comments on reddit until their AI caught up to my behavior and shadow-banned my 17 year-old account. As soon as that happened, I could see every comment I ever deleted in my history again. The only consolation is that no one but me could see my history anymore.
They're both paper tigers. The CLOUD Act and that massive data center in Utah trump* each of them respectively.
What happens in the US stays in the US, delete button or not.