You might want to check the new ThinkPad Z13 and Z16 models with latest Ryzen CPU. You get similar performance and battery life as you'd expect from an M1. https://www.notebookcheck.net/Lenovo-ThinkPad-Z13-laptop-rev... No need to change the CPU architecture.
Thanks a lot, not just for the recommendation of the new ThinkPad models, but for the link to that website. I had no idea about it and it seems to be very extensive in their reviews, which I love. It'll get a lot easier to find a good alternative now! Thanks a lot!
Sadly they do not test with Linux though...