Yuzu has amazing compatibility. I'm guessing it's getting too good for Nintendo. Their concerns with TotK are not without merit. I played it on Yuzu (on PC) because it was a much better experience than on the switch. Within a few days of the game being out, there were resolution and fps patches which made the game run much better. That said, I'm not sure how Yuzu can be blamed for TotK piracy. Guessing Nintendo is throwing a hail mary here and hoping they can connect the dots during discovery.
I hope this doesn't spell the end of Yuzu, because I use it to play switch games that I own on my steam deck.
I hope this doesn't spell the end of Yuzu, because I use it to play switch games that I own on my steam deck.