I've switched from Ubuntu to Mint a few years back at home, at work I have to use Ubuntu. Functionally, the two are identical for my use case. I love Mint, it just works and there are no surprises as far as I can tell.

Do they do release upgrades yet?

Does Mint allow to safely roll-back package manager operations (i.e. without ever failing)?

If not, what other distro allows this (other than Nix)?

This is the main feature I'm looking for.

Guix also has rollbacks (and a learning curve) like Nix(OS).

https://guix.gnu.org/

Good to know, but they are not officially supported by NVidia.

https://developer.nvidia.com/cuda-downloads?target_os=Linux&...

Fedora Silverblue