Like Dune Pro 4K II, please add support for auto framerate switching and auto resolution switching for Android apps.
I've the Z9S and not sure about what the Android 9 boxes offer, but did you check the Android Display settings?
I would like the Picture Viewer to switch to 4K automatically for obvious reasons. This when using 1080P23 as the preference and Auto framerate+resolution set .
Does that actually work for Netflix or other apps on the Z9S? We have the option on Z9X but I left it alone because I thought it might interfere with the Zidoo refresh rate changer. Would be nice if the box would change to 1080p 50hz when I watch football on BT sport or Now TV also.
For Netflix, Prime, Disney, Plex and stuff I use in my bed room on the 2016 Samsung TV an Amazon Fire TV stick 4K. In the living room on the new 2020 Samsung TV I use the Samsung tizen apps. The Z9S is mainly for UHD ISO playback and nearly all work with full menu.