Last time I checked, it depended on where you live and if the laws in that area require them to allow you to delete certain information. It's on the a cache thing, it's in your account. You can set up a new account, but if you use other Meta applications like Facebook, WhatsApp, Threads, etc, you may have to abandon those as well.
Might be possible to use a VPN or something to pretend to be in a country that they allow to have more detailed deletion of data, but I'm not totally sure if it's just your current location or if the account has to have been created in that location or of you can change your account-level location, etc.