[smivan]

I have the same nightmare, so to mitigate risk I run a self hosted instance of Gitea [1] and set up nightly mirroring.

The folder with the mirrors is then uploaded to a backup provider, in my case Borgbase [2]

1. https://github.com/go-gitea/gitea 2. https://www.borgbase.com/

[vinni2]

Does it also backup PRs ans issues and all the comments?

[zaphar]

It has settings for mirroring prs, issues, and other stuff. I don't need it my own mirrors so I've never tested them.