I doubt it. Why wouldn’t it just be a modified Pro controller like every other classic controller they’ve released. My guess is they are just managing expectations that it won’t be automatically usable with every game and mapped correctly.

I doubt I’ll ever connect this to my Switch 2, it’s going to be a replacement for the aging used WaveBirds that are hooked up to my Wii. With BlueRetro as the receiver, my guess is they’ll work day 1 or shortly after. For that, they’re awesome options.