I had some fast battery drain on Lubuntu with the AMD board, but that was mostly due to sleep not working so it’d shut down when trying to sleep (was too lazy to fix sleep issues), so my laptop was just locked when not powered down.
After switching over to Fedora version 41 sleeping works great and the battery drains maybe 1-3% while asleep for 8+ hours at work without extra configuration. Not sure if it’s an ubuntu thing or what, but no issues on Fedora and it’s been a much better linux experience than Lubuntu, though that’s to be expected since the distro is a lightweight one.
Although Fedora took a little bit of getting used to, I’ve actually enjoyed it more than any other linux distro so far (tried Mint, Arch, and others as well) and it’s been very stable on the Framework, minus some issues with USB-C functionality with external displays and other USB-C devices on the newer linux kernel.
I’d say give Fedora a try for a less hassle linux experience.
That all being said, there are some other threads reporting similar issues and it is being tracked as a known issue in the first thread:
I also found this article that speaks to how to change some settings to get it working properly as well, but as I haven’t had the issue I haven’t tried it.
https://luisartola.com/solving-the-framework-laptop-battery-drain/