For a comprehensive and current resource, Cemu Wiki: Breath of the Wild
Q: Do I need a Wii U console to play Zelda Breath of the Wild on Cemu? A: Yes, you will need a Wii U console with the game to play it on Cemu. Zelda Breath Of The Wild Update Cemu
The latest updates to Cemu have turned Breath of the Wild into a masterclass of emulation enhancement. What was once a compromised, stuttering experience on original hardware now runs like a native PC title—often better than many official PC ports. If you have the hardware and the legal means, this is the definitive way to experience Hyrule. The Zelda team crafted a masterpiece; Cemu’s developers have finally given it the technical foundation it always deserved. For a comprehensive and current resource, Cemu Wiki:
And Hyrule shimmered, just for a moment, as if waking from a dream it didn't know it had. What was once a compromised, stuttering experience on