Not OP, but I used Ubuntu for years and just installed OpenSUSE on my laptop last week. I really like Plasma compared to Gnome. The package manager repos needed a lot more configuring on openSUSE compared to Ubuntu, as there were a lot of software not available in the default repos. Things like my graphics drivers for my dedicated GPU needed a repo added. I also like apt a lot more than zypper. Zypper seems to complain about incompatibilities a lot, and it’s much slower. OpenSUSE has far more up to date packages than Ubuntu, which was the main reason I switched. I also really like btrfs and snapshotting built in. I haven’t figured out Yast yet. It seems confusing to me. I prefer to set configs from command line.

Once I had everything set up though, I can’t really tell the difference, which is ideal.