Yuzu supports multiple platforms. Click on the button under the relevant operating system icon to Install and Download Yuzu. You can also read the installation guide for each OS.
The installation process is pretty easy for Windows, Android and Linux users, all you need to do is to download the relevant .exe, .apk or .deb file and run it.
You may also want to check Yuzu Prod Keys and Title Keys and Yuzu Firmware.