While I did not figure out a solution yet, but I found out some additional information and came to the conclusion that nixos must have built something weirdly. Thus I posted on the nixos forum and will likely only update there: https://discourse.nixos.org/t/how-to-turn-off-gnome-hover-click-on-kde-plasma-and-why-did-it-get-activated-in-the-first-place/36643
Well yeah but imagine you had to do that on most lines of the code? It would become very distracting imho. If you are in a team with people that have a lot experience and or will learn more anyway this is fine. But if you are in a team with not very good programmers which “will never learn” because they have other stuff to do, you should be careful when using code like this. Though I would prefer in the former of course.