When one has to restore a partition, it is often necessary to reformat same first, followed by the restoration using a backup. With UUID=.. the reformat causes a new UUID value to be created.
BUT with PARTUUID= , the value it has fixed for the life of the partition.
It, PARTUUID= is invariant from the time the partition is created.
In a multi-boot environment, it is a change I manually make to each /etc/fstab. Currently I am multi-booting Fedora 37 Gnome, 38Gnome, 38KDE, 38Cinnamon to do my own QA on the presented distros, and also to check how my own software is functioning under the four mentioned.
Since the new installer is in progress, I would would like to propose that the change be considered.
Ben and Matt, I have issues with access. That is why I am using this email response to propose a future (Fedora 39) change.
By the way, manually changing the fstab entries from UUID= to PARTUUID=
works flawlessly. If you do not want to incorporate said change, then a simple program to do it is easy to write and test. I have such program underway.