I don't know for sure, either, but I suspect any recent Macbook with 16GB RAM would be a significant upgrade over 14700H.
I don't like macOS, so in recent years, I only use it on laptop (which for me is like, a few on-site meetings per year, plus a few airplane flights). What infuriates me is that my mid-tier Mac laptop for those use cases is now significantly faster than any Linux workstation I can possibly buy... and positively annihilates any non-Apple laptop machine on essentially every meaningful benchmark.
I really hoped that Asahi Linux had progressed. I want to use Linux on apple hardware.
There are a few new AMD rigs, for either games or unified memory applications that are competitive or narrowly beat Apple in performance (not efficiency).