well, it is relatively CPU heavy. nearly everything on the map is destructible, there are 100 players on the map, vehicles, some physics... it's not trivial.
graphically it can run on anything, especially if you go full low-end and use the "performance" renderer, which is a DX11 mode that uses the mobile version assets. (I still don't understand why the Switch 1 version didn't use that tbh)
but CPU side, it's not that easy.