As a novice DON'T put your devices on the open Internet. Use something like tailscale or Splittunnel. You can give your friends access through that.

The fingerprint method is named Canvas Fingerprint. It uses the canvas component to build a fingerprint of your PC. By adding random noise to the canvas the canvas is altered slightly by the browsers anti tracking feature and the detection does not work. I don't know how the canvas fingerprint itself works.