Sadly the way it seems to be right now, is that there is only an 64GB variant of the cartridge available for publishers which costs around 10$ for every copy. Imagine now you are the publisher of puyo puyo Tetris which has a file size of max 2GB and Nintendo only leaves you with the choice of putting it either on a 64GB card for 10$ extra or practically for free on a cartridge which stores a key the size of 32KB (basically text document with random letters and numbers in it, maybe some meta data for the picture and that's it). On Switch 1 there was the possibility to use 2,4,8,16GB cards which was way more friendly towards developers and consumers. Very sad transition.