‌1. Accessibility problem.. -  with latest Android accessibility suite app update in which select to speech popup is replaced with accessibility menu which isn't working in full screen mode display neither in buttons display too.
2. App animations not working
‌3. touch problems - even with charging cable and earphones wire.. screen is responding

4‌. Full screen mode .. one handed mode not working
‌5. App lock doesn't have face unlock

‌6. Unable to fav wallpaper on lockscreen
‌7. to go to app settings for eg. Mi calendar, if we long press recent button, we can go. But this can't be done in full screen mode, moreover there isn't any other option to go to that specific app settings in the app too.