old school solution is the devilspie2 utility. but that may not work on Wayland

there can be various file index services that run to allow faster searching of the system.

these typically run in a schedule, but in a new install they may run on the first boot.

after they run the first time, they will run occasionally on a schedule.

I am not sure if time shift does this or not, I never use that tool.

For mouse battery it may depend on the specific mouse and it’s drivers.

there are some enhanced mouse/keyboard utilities out such as that ‘libratbag’.

there is an odd bug with the steamdeck where when it wakes from sleep it goes back to sleep.

I think it’s seeing a time difference greater than the auto sleep timeout, so it wakes up, thinks it’s been idle for 5, or 15 or whatever min, so it thinks it’s time to go into sleep mode.

you wake it up a second time, And it does not see the time difference trigger, so it stays awake.

I am currently testing this by having auto sleep turned OFF. I now manually sleep as needed and so far , I have not seen it go back to sleep after waking up.

SO FAR…

No idea on the other issues.