BioShock: The Collection is coming this month to Switch and a physical version is planned, but you won’t be getting everything on the cartridge. It was noted on 2K’s store that there will be a download of 31GB at least.
The collection will come on a 16GB cartridge. and includes the opening acts of BioShock Remastered, BioShock 2 Remastered, and BioShock Infinite: The Complete Edition, with the extra download containing the later game contents and add-ons.