A single youtube video has a couple of available video, audio and combined streams. It might be your browser picks a different stream to what youtube-dl (or its

A single youtube video has a couple of available video, audio and combined streams. It might be your browser picks a different stream to what youtube-dl (or its fork) takes by default. I'm not sure what the defaults currently are for youtube-dl and its forks, but for a long time it defaulted to the best combined stream. However the best distinct audio and video streams are higher quality.