Same.
When I started in 2000, I was using the OG KDE. Gnome just felt limited back then. Then Gnome 2 came out and it was perfect. KDE 3 was a fucking mess so I stuck with Gnome.
When Gnome 3 came out, I couldn’t stand it one bit. Even Canonical came up with an alternative with Unity. I stuck with MATE for a long while. Then KDE 4 and 5 came and it was great again. It still has a lot of bugs though. It’s not as stable as Gnome. But at least it’s usable. So I’ve switched back to KDE.