There was a lovely window of a few years when processors were fast enough and low-power enough that real development work could trivially happen on a Macbook Air in a lounge.
That window is waning as more and more memory and graphics processing power is being used locally.
I suppose the future is most likely going to involve farming out AI requests to your desktop machine, your company's compute farm, or a cloud endpoint, but if you're expecting to run an AI offline on your lap with a battery...your lap will get warm.