Do you have any proof you’re not a chatbot?

Well, if you’d like to reduce your risk of losing data to a minimum, you should still test your backups anyways. Shit happens, even to the good people at Backblaze sometimes.

Or things like your offsite provider taking a shit and corrupting your backups without realizing, meaning when your local backup goes kaput your 2nd backup has already silently failed. That exact thing hitting one of their off-site providers was what convinced one of my clients to let me fix their backup procedures (or at least try)