Jumping on the OpenSUSE bandwagon. I use it daily, have been running the same install of Tumbleweed for years without issue. I'm using KDE Plasma which it let's you choose as part of the installation which fulfils that requirement for you as well.

If you're familiar with Redhat you'll feel at home on it. Zypper is the package manager instead of yum/dnf and works really well (particularly when coping with dependency issues.

I've worked with heaps of distros over the years (Ubuntu, Debian, Fedora, RHEL, old school Red Hat, CentOS, Rocky, Oracle, even a bit of Alpine and some BSD variants) and OpenSUSE is definitely my favourite for a workstation.

I second opensuse, there is also a non-rolling release option, i think.

My tumbleweed has been exceptionally stable, updates without problem.

Getting the arch experience in software support (has a "community repo" as well) but in a stable way and there is never the need to use the terminal, if you don’t want)

Love it, recommend it.

For more stableness check out the slow rolling version or the immutable versions (both in "beta" state)

Stable as in reliable and not as in unchanging

Slowroll. You change to it from Tumbleweed and its not completely finished but should already just work.