One feature that you really need to not remove from the Roku app is to display the duration on the movie and show list page instead of the year. I often am trying to find a movie that fits in the time I have so it’s quite annoying to have to open every movie just to see how long it is. The old Roku app displayed this on the page with all the movie covers.
When I go into shows then filter them by unwatched it will show only the unwatched shows. Then when I come back later to the same section it defaults back to all shows. My Android TV Plex remembers the setting, but my Roku beta does not.
