I hate playing 2d games and JRPGs on a keyboard/mouse, I'd rather play them laying on the couch with a controller. That said, I can't deal with controllers and first person games, I can't coordinate my hands well enough to deal with moving and turning the camera simultaneously because I didn't really use consoles in the 3d first person generation, outside of Goldeneye and Perfect Dark. I have a PS2 and a PS3, but those are definitely my JRPG machines, and Nintendo was not exactly brimming with 1st person games before the Switch. For the most part, I think 100% that keyboard/mouse is better for 1st person games.
I'm pretty sure saying keyboards are better for platformers is masochism though.