But only in addition to gloves right? You probably don’t need that on bikes because gloves are enough at the speed you normally ride a bike at. You only need heated grips on motorcycles because you are sometimes going very fast and gloves are too cold, right? I have never ridden a motorcycle but that’s what I imagine it’s like, correct me if I’m wrong.

I've never had a bike with heated grips, they seem a bit silly to me. When I ride in cold weather, I wear thick leather gloves that block a lot of the wind, I don't know how much heated grips would help through thick gloves. For super cold weather, I have a set of electrically heated gloves that do an excellent glove, they're marketed at snowmobile riders

Pogies are a huge improvement for bikes. Strongly recommend for anyone riding in the winter. See, there actually is nuance here!