There are times when I would find something on YouTube that I would want to listen to through my music system, but since the source is a Windows 10 computer, I always wanted to control YouTube from my phone as how you would do when you are casting YouTube on a YouTube TV.
I am sure some of you here may already know this but if you use a computer as a source and have Chrome browser installed and then install this plugin as pasted below.

After this, you can connect to the YouTube running on your PC from your phone and it is then very convenient to choose and play the content of your choice.
I am sure some of you here may already know this but if you use a computer as a source and have Chrome browser installed and then install this plugin as pasted below.

After this, you can connect to the YouTube running on your PC from your phone and it is then very convenient to choose and play the content of your choice.