The KDE plasma UI feels like all the best parts of windows 10 to me. The default taskbar+clock+system tray+start menu UI feels exactly like windows 10 to me. But you can also customize it very easily. The settings menu feels a bit more like MacOS than windows’ control panel though.
Several linux distros use that UI. Im on NixOS but i probably wouldn’t recommend that as a starting place. I’ve used bazzite and it worked pretty well out of the box. But i think there’s ubuntu and debian variants that use plasma that are probably pretty good as well.