I was already full Linux, but gnome is the reason I stopped messing with window managers and maybe large 4k monitors.
It finally hit enough of 'just works' and customizability to use my standard workflow.
The only thing I want that I don't have right now is horizontal monitor splits for vertical monitors.
I ask before I take the interview. Location, salary range, linux laptop are prerequisites to me working for anyone. If they punt on the laptop question it means no and they are hoping you'll want the job even without. I can promise you I won't, and if you view that as a red flag I can promise I don't want to work there so I don't care.
If its a hard requirement for you just say that and say that's for workflow and you don't want to waste anyone's time