the whole apple-bad thing aside, you're getting a non-expandable 8 GB laptop, of which a significant portion goes to graphics. that's pretty low today, and it's gonna be worse down the road. speaking of graphics, although Asahi has basic functionality, the driver isn't 100% yet.
I hope you don't plan on torrenting a buncha stuff, as the SSD is small and non-replaceable and after years of use has an insane TBW number.
the battery longevity is a solid argument but you are buying a 4 year old battery that will show signs of aging.
I am all for repurpose/reuse/recycle, but unless you get it for free, or close to it, this thing s a bad idea. get a similarly aged business-class laptop (thinkpad, ~~yoga~~, latitude, elitebook, etc.) that you can cram full of RAM and storage and replace practically every component if it fails.
that's radically different. although the serviceability is still nonexistent, that's a very useable machine. just be prepared to toss the thing if anything breaks.
for me, that would be a deal breaker but I understand the itch to try it out. just make sure it's not icloud locked.