For me, KDE Plasma 5.18 on @openSUSE Tumbleweed is Awesome-Sauce. It has been a buffet of further refinements, feature enhancements and little improvements make it a welcome update. It’s nice to not have to worry about losing something in an update. Either a feature or the ability to run it on a trusty old piece of hardware.
Overall, I am quite happy with it. Most important to me, none of the changes in 5.18 are irritating. Sure, that doesn’t sound like a ringing endorsement but for me, there is no greater statement that can be said about a desktop as the changes are not irritating.