Report suggests Switch 2 can play all original Switch games. 
The new Switch 2 game cards may not be compatible with the original Switch. Also, more buttons, magnetic attachments, and 4K upscaling.

Report suggests Switch 2 can play all original Switch games. 
The new Switch 2 game cards may not be compatible with the original Switch. Also, more buttons, magnetic attachments, and 4K upscaling.
https://arstechnica.com/gaming/2024/04/controller-maker-says-switch-2-will-be-backward-compatible-with-all-switch-games/

No f way Nintendo will do it)

I will be surprised if it's true, but I won't be surprised if u still will have to buy Switch 2 versions of the game😅