I’m a KDE user right now. While I love KDE, I find that it breaks way too easily when you customize it. And there’s way,way too many customization options to a point that it becomes overwhelming. I can waste hours trying to customize something, roll back, break KDE, reset my KDE environment, try again, etc. And between KDE users, the desktop will almost never be the same which can lead to issues when they ask for support from a friend or something.

In gnome, what you see is what you get. You can just focus on your work or your activity. And because there’s less customisation options, you get pretty much the same desktop experience across multiple users. So if I go to a friend’s place and they also it Ubuntu with Gnome, I’m almost certain to have the same desktop experience as mine