I know that in the past I was able to use the OBS Virtual Camera to record and save a YouTube video, but no longer. That last time was probably two years ago, and I've forgotten the details.

I can successfully get the YouTube link using the Share feature in YouTube, and inputting that into OBS. And I can START the Virtual Camera to capture the result. When I have finished I STOP the Virtual Camera and then exit the program. However, I don't have any video output in \users\userid\videos. I've searched and searched and searched, but I can't find any specific instructions about using OBS the right way.