What's the fastest (and recommended) way to backup CP/OLS before upgrading?

Hi folks,

I want to upgrade CyberPanel to latest.

What’s the recommended files to back up CyberPanel and OLS before doing an upgrade? In case something goes wrong, so I can restore it and get it up and running again as fast as possible?

I was considering doing a snapshot in DigitalOcean, but that takes around 30 minutes or more to perform. So it’s not exactly quick, and I know it is likely overkill.

I imagine there’s really just a few folders that need backing up. Can someone please advise?

Thanks…

I am aware CyberPanel has a Backup system within it, but as far as I can tell, this is for backing up individual sites, one-by-one. Have I understood that correctly?

I have a separate question related to that: Does CP have a way to back up all sites and all its configuration in one shot?