You can't restore backups! You can export your data, but there's no way to import it, because you can't set the object Id or autonumbered fields (like the case number, which gets communicated to the customer). They used to provide an extremely expensive recovery service, but they stopped doing that. That's just unbelievable for a business product.
I also can't count how many times I looked up an issue and found an "Ideas" post that's over ten years old, with 10k upvotes and no reaction from Salesforce at all. Id doesn't seem like they work on the core product anymore, they just release new things that you need a license for.