I'm going to second this, hard. You're much better off doing anybody's $10/month github copilot/codey/cursor plan, spend less to get a laptop that does everything else better, then in a year or 2 ask again to see if localLLMs have gotten better or if x86 laptops have gotten better.

What I can do with localLLM on my MacBook is not worth paying extra for an x86 laptop that be heavier, hotter, louder, and less battery (especially if you're not going to play games).