When Android 11's Gestures are enabled, trying to crop a landscape video in portrait mode is near impossible because the cropping handles are too close the edge. This means if you try to move the handles, you will end up doing the "back" gesture.
Also, you can't uncrop back to the original size because you can't drag the handles all the way to the sides.
Telegram Android 7.4.2 (22279), Google Pixel 4a, 11 R? (30)