Familiar is bad imo, just switch to something different. It is different, embrace it. I use Fedora gnome btw
This is an odd take. There is no inherent advantage to using an unfamiliar ui on linux, there is nothing under the hood that “works better” for any specific desktop environment
I wouldn’t agree either, but I think there’s some kind of logic: At a certain point familiarity can be a detriment to learning if it leads to you adding invalid assumptions to your mental model because everything else is so familiar. If everything is unfamiliar however you’re less likely to start making assumptions.
As for how true of effective this is, I don’t know. Anecdotally however I had less problems learning entirely different keyboard layouts for example as opposed to layouts that are just slightly different.