Debian on framework 13 AMD - battery life?

I run Debian Bookworm with KDE on my FW13 AMD and idle with Wifi at 30% brightness is ~5W. I installed kernel from backports and firmware from trixie:

I just downloaded them and did dpkg -i on the deb-files.
I do not use fingerprint reader, so i can not tell whether it works, but everything else is smooth.

On Debian stable when I unplug the power the Battery Status GUI shows me at ~3.8W, but after a half minute of doing nothing, just looking at it, it jumps to, say, 7.8W. I don’t know why. Grrr.

A question about Debian stable: how does wake from suspend work? For me it works, but it takes over a half-minute to give me a picture of the lock screen. How is testing for wake up?

Thanks,

-kb