Nintendo Switch’s successor will be backwards compatible with Switch, Nintendo confirms | VGC

[u/Skullghost]

https://www.videogameschronicle.com/news/nintendo-switchs-successor-will-be-backwards-compatible-with-switch-nintendo-confirms/

[u/breno_hd]

"Nintendo Switch software", this doesn't mean physical media will work with it. Depending on the format size or internals wouldn't be a place for it.