It's a smooth bottomed laptop and it doesn't really weigh enough to be an issue on your lap. You don't feel the feet on either model enough for it to be noticeable. It also runs very cool even under load.
I have 16 MacBook m1 pro and its very comfortable on my lap, not heavy. It never even gets slightly warm no matter what im doing on it. Sometimes I use one of those laptop tables from Ikea.