So, anyone that has seen the box art for Wolfenstein II notices that it "requires" an 8GB download, but what is that for? If you play the game (either with cartridge or XCI file), it boots up just fine and you can play it. I know Doom had the full game on the cartridge but a separate download for multiplayer, but Wolfenstein II is single player only. I wonder if anyone went to the store to buy the game and saw that "Internet Download Required" notice and thought to themselves "well, I don't have enough storage on my Switch and I don't feel like spending extra money on an SD card, so i'll just get something else" or if someone said "my internet speed sucks, I'll pass" or people that are in rural areas that are on limited internet speed (whether it be satellite internet or mobile data) didn't buy it. I can confirm the game does load and play with TX OS without the download. I just wonder if you get about halfway into the game and it says "Please connect to wifi to download the other half of the game" or something....
Extra data which wouldn't fit on the cartridge. And no, it doesn't have a message to download the rest of the game because you're not supposed to be playing it without that game data. You are basically playing a partially downloaded game, subject to many glitches and maybe data which makes the game perform better overall. NBA2K is a great example of this. When I bought the cartridge version, it had a 19GB download attached, as the cartridge itself only contained 8GB of the game. I was impatient and launched the game while waiting, and it sent me directly to the Team Selection page. I started a game, and omg it looked horrid. Shadows, animation, movement, everything looked pretty disgusting. I closed it, and I waited for the software download, which took about 2 hours. Once I opened it, it started downloading for another hour. When I was finally able to play, it looked a lot better than before. Now by
no means is NBA2K look anything like the Xbox of PS4 versions, but it is still ok. My point is that these software
downloads are necessary and may affect performance for real. It could also be considered unauthorized use of software of hardware because you weren't supposed to launch it before it downloaded everything, and the game doesn't know if it's downloaded fully or not.