My Roku 3821R (new in May 2022), when in 20 minute auto power off mode, turns off while watching non-movie streaming content (e.g. CNN live & old TV shows on Amazon Prime, etc/). I have three devices and must disable auto power off on two of them.
I like the idea of power savings, but don't want it to activate while watching TV. The home screen is fine for auto power off as there is nothing there to watch.
I would like to see an option to restrict the power off mode to the home screen only.