I like that I can scale the video as I want. Like on a news-site the only options are often a small inline viewer or full screen. So I use PIP often for that ev

I like that I can scale the video as I want. Like on a news-site the only options are often a small inline viewer or full screen. So I use PIP often for that even though I'm staying on the page. And it's just more convenient than trying to maximize the space of another browser window and making it stay put above other stuff. No extra chrome, no wasted inline space on the page. I can just take a Blender tutorial for instance and move directly above my Blender window and it obscures as little as possible.