I tried to think very hard for OpenSuse TW but there honestly is nothing, other than maybe not shipping duplicate apps (e.g. two camera apps) with the ISO.
I'd say updated documentation, there are some articles in their wiki/documentation that don't consider the default configuration for openSUSE, but an old one I think.
Better management of the btrfs default settings and cleanup scripts. My install bricked itself because the root partition was 30G and it chocked itself to death (home and all data was elsewhere).