Try upgrading your kernel to at least 6.11. Someone else mentioned this in the “high battery drain during suspend” thread that it improved their suspend drain a lot for their Ryzen AI board. Admittedly they’re using Linux Mint, but if I’m correct both are a form of Debian so I’d think it would also help with Ubuntu?
At least on Mint, it also unlocks the ability to control keyboard backlighting from the taskbar instead of having to hit FN + Spacebar, which is cool. You get more granular control of brightness for both screen and keyboard, which helps on battery.