I know a bit off-topic but you don’t have to update every day - you can but you don’t need to. You can update Arch as unfreqent as Manjaro stable if you want to. Only when security fixes are provided a timely update is recommendable.
That is a disease you will outgrow - I think many of have been there - but as you have learned is that running a computer is more about stability than using the latest and greatest.
Personally I have been running Manjaro on the ‘unstable’ branch for almost as long as I been a Manjaro user which I became early 2016.
That said - check your tlp settings - there is a handy gui in the package tlpui.
Thanks for the tlp suggestion. I copied the tlp.conf to Manjaro. We’ll see.
EDIT: It seems that the issue is solved. For those having the same problem, in TLP try to enable “Devices to start in AC” (check all items), and disable BT autosuspend.
Yeah, I’m more from the Debian side, but I needed the AUR. Manjaro Stable seems like a good compromise.