Switch, 3ds, PC. Also sometimes my old ds when I want to play gba games. I always am PC + a Nintendo handheld console. My PC can't play anything more advanced than Witcher 3 though (and even then not on max settings).
I have my Switch and PS5. I play pretty different games on each system, so it’s nice to have the variety. I think I prefer the portability of the Switch, though, as fantastic as the PS5 looks.