List below.
Depending on the game it’s resolution/framerate improvements, HDR support, mouse controls or gameshare/gamechat support.
- ARMS
- Big Brain Academy: Brain vs. Brain
- Captain Toad: Treasure Tracker
- Clubhouse Games: 51 Worldwide Classics
- Game Builder Garage
- New Super Mario Bros. U Deluxe
- Pokémon Scarlet
- Pokémon Violet
- Super Mario 3D World + Bowser’s Fury
- Super Mario Odyssey
- The Legend of Zelda: Echoes of Wisdom
- The Legend of Zelda: Link’s Awakening
Yeah, I agree they’re kinda lame as “functional upgrades” and probably not worth paying extra, but I was just clarifying the difference between the paid and free upgrades so far.