You can easily download YouTube videos with invidious. Just edit the address in the location bar by replacing everything before the first
/ (forward slash) with
invidio.us. For example,
www.youtube.com/watch?v=zEBWfKl75Oc will become
invidio.us/watch?v=zEBWfKl75Oc. Then just click the
Download button below the video. You may optionally use the drop menu to select a specific encoding format for video, audio, or both in a single file.