Most developers use their work provided machines, which aren’t gaming machines with giant GPUs because again, GPUs don’t help development at all.

Also developers often want more ram, and if youre on the mac side, the M series ram works as video ram for loading and running models, so there's a good chance you can already run something better than is typical of others, and apple is focusing on this by adding more NPUs and increasing memory bandwidth. They arent good at training, but can do inference.