Interesting thing to think about here:
If Pokedex completion is considered a goal in LGPE rather than just beating the game, then technically this will be the first time in 17 years that we will be able to have physical Pokedex diplomas. From R/G/B all the way to Crystal the Gameboy printer was supported for pokedex entries and Pokedex diplomas. Now though you can screenshot the diploma with the screenshot button, post it to social media, download said screenshot from social media to your computer and then print it out. An old feature added back completely unintentionally.