@antheas I've set 80% charge limit by HHD. And made a reboot. The 80% configuration is still there. Now the device is at 82% and it is not using adapter power. Let me see how does it go when it drops to 80%.
there is a kernel bug in 6.8.9 though so you need to enable rebar in bios to make it work in proton if you do not have rebar in bios you must use the bazzite image from may 2nd until a new kernel is released