The video in text is easy to do. Shotcut doesn’t have a set matte effect like Hitfilm. Need to use Chroma key instead.
https://streamable.com/47zbvy
https://streamable.com/47zbvy
The end screen is also pretty easy to do. Text, Size and Position and Rotate and Scale filters mostly.
The spinner is courtesy of @Elusien.
https://streamable.com/xbua45
https://streamable.com/xbua45
The custom 2D transition was the most challenging. Had to use multiple masks with keyframing and mask from file to get the transition to work.