The UVC driver is baked into the Linux kernel. Plug in the camera and use Cheese or VLC to test it. No driver download is necessary.
Naxido is not a giant like Microsoft or Apple. They are a smaller peripheral manufacturer. As such, they often do not host massive driver libraries on their primary website. Here is the safest path to finding genuine software: Webcam Naxido W8n Driver
Let us assume you have installed what you thought was the correct driver, but the camera still shows a black screen or an error. Here is your troubleshooting checklist: The UVC driver is baked into the Linux kernel