Automatic Vault Storage for Backup Codes
A hotkey and/or button (or perhaps automatically ask when it sees the appropriate words) that automatically screenshots a page with backup codes, and stores it with the appropriate URL in the 1GB storage. A referencing link could be maintained in the vault so you know you have it (and perhaps the document name)
One reason people don’t keep TOTP backup codes as they don’t know what to do with them and/or where to store them. This automates the process and makes it user friendly - increasing two factor adoption and the adoption of premium accounts.