It looks like the UI and the inflight map aren´t optimized for 20:9 aspect ratio devices anymore. Before 21.6 they were. Below are some screens to show the difference (just look at the red markings).
Device: POCO X3 PRO (Android 11)
UI before 21.6
UI after 21.6
Map before 21.6
Map after 21.6
Maybe its on purpose, but in my opinion it looked way better before 21.6, even if it´s only a minor difference