I almost exclusively game on Switch. When I don't, it is the odd 3DS game that I have in my backlog, or when I have people over and we play some older Ninty consoles.
I don't know how people have the time to game on more than 1 system at a time. I would definitely try out PS4 if I had the time, but there are just too many games on Switch that I want to try out.
1doesnotsimply