Hi there,
I’ve seen the work done by aurora teams and it looks awesome.
I know that doing the same in gnome would be a little tricky but imagine a GUI settings page in gnome-settings, like Ubuntu does (desktop appearance if I am not wrong) that let you simply rebase your image, add developer experience, Nvidia/Nvidia legacy support and more…
Also, an update section in bazaar, which let you take a look if you are updated or not and also if you need to reboot (in this case maybe a notification like : Heyy new updates are incoming reboot your system to apply them! would be so good).
Sorry for the wall-of-text,
but i think this would improve the ublue experience 