Which btw is what should be done but.. it can cause rage
[*] may not be continuous or complete in all circumstances
It used to be that an aircraft would get a full power down as often as daily, but as individual components got more reliable and external power easily available, it became common for aircraft to not be shut down fully between flight days.
All aircraft have schedules of maintenance. Requirements to reboot a computer periodically isn't onerous. It's not onerous but the insane costs of recertification are. Fixing this problem to not require reboot would be very expensive. Not just the FAA process burdens but the wider costs. 787 battery problems probably wrecked the entire profit of the model for years.
The Max flight safety issue on another Boeing aircraft may mean its never profitable. The industry is wierd.
Unless you have a dedicated team doing that, preventative reboots and various “workarounds” sound great on paper for administrators but make for a shitty experience for people doing the actual work.