Sure you can, but you must have quite an audience for devs and publishers to care enough to make and optimize games for your platform. Apple does not have it on Mac side as they are too pricey in terms of what they offer performance wise in case of games.

You will get a Windows laptop with much better performance for less money and most gamers (those interested in AAA games at least) usually care about the price, only a niche buys those Alienwares for 10k (and they on the other hand want the best of the best, which Apple also does not offer as their GPUs are at best around 3060/3070 level).

I don’t see Apple changing the price structure anytime soon, so I don’t see their market share changing. With current pricing they are too expensive for an average gamer and are not at the top of performance charts for a rich gamer.