You can still do it in YouTube Android app as far as I know. Open video, tap that little empty square in the bottom right corner and your video will be rotated

You can still do it in YouTube Android app as far as I know. Open video, tap that little empty square in the bottom right corner and your video will be rotated to the horizontal position(view) and then tap that little comments box[0] in the bottom left corner(third icon). [0] https://i.imgur.com/vDzDrio.jpg https://i.imgur.com/vDzDrio.jpg