That physical versions of Nintendo Switch 2 Edition games will include the original Nintendo Switch game and its upgrade pack all on the same game card (i.e. they are exclusively Nintendo Switch 2 game cards, with no download code). Alternatively, some publishers may release Nintendo Switch 2 Edition games as download codes in physical packaging, with no game card.
So it’s still up to the publisher, and won’t be any different than it is now.
Yeah there’s no difference here lol