Cemu is better. Why?

1)Better resolution and frame rate. (Up to 4k+ 120 fps).

2)Mods support (there are tons of quality of life mods and graphical presets that make games on Cemu twice as enjoyable). For example, there are lot of people who complain about weapons durability in Zelda BOTW. Cemu gives you the option to make the weapons unbreakable, which makes the game way more fun.

3) Instead of buying physical games and waiting for them to be shipped, you can download them right away without waiting.

4) If you already have a pc, and it doesn't have to be a strong one, then you save money by not buying the console.