I don’t think that’s how people buy games. Even on PS5, I can’t install 6-7 AAA games at once (well, depends on the game, some are pretty small) and regularly run out of space.

And that’s the good thing about Nintendo’s cartridge, you can run directly from there, and don’t have to copy the data to console. Though that will only be true for games that have any data on the cartridge and not just the download code.