This is one area that Ubuntu can improve on, I think it's being worked on with the zfs based snapshots installation options. Hopefully the next Lts release will

This is one area that Ubuntu can improve on, I think it's being worked on with the zfs based snapshots installation options. Hopefully the next Lts release will allows easy rollback for failed upgrades. If you are particularly concerned about stability NixOS Distro is worth taking a look at despite its steep learning curve