Impressive, that must be a recent fix then, and it's good to hear. I tried Asahi some time ago and it was about 3-4 hours on average. I am still running Linux Mint on an old 2015 Macbook Pro and had to make some major power management tweaks (preventing it from _ever_ boosting up from base CPU and GPU frequency) to get close to the battery life I had before.
Definitely not 5h, not anymore. I just got off the train after working on my laptop for 3.5h, connected over wifi to the internet, browsing, searching files, etc., and ended with my battery down to 65%. I have no complaints, this is as good as it gets for Linux users. I think it's worth noting that Linux and its stack is probably most efficient OS nowadays, performance wise, so while not totally optimized for hardware, the software gets extra 10% or so over macOS and it might be showing.
