Would like to request video playback that takes up the full browser window, similar to how Plex works. I don't necessarily want to go full screen, but I would like a bigger window then what I get with the PIP window on Safari. On a 5K monitor that PIP window is still sort of tiny. Even fully resized the PIP window only takes up a small section of the screen, and it's fixed to the 4 points of the monitor. Letting the video play in the full browser window would let me dedicated that full browser to a section of the screen and easily move it around as needed.
I was just about to post this exact request but decided to search first just in case. Lo and behold, here it is. 
Upvoted.
Maybe not quite what you're looking for, but after hitting the Watch button and the video starts playing, try hitting Command and the + key to zoom the window. (Command and the - key unzooms)
Yeah not quite what I'm hoping for, but still pretty ingenious 
Agreed we need to do this. We don’t love it in the modal either.
Protip: hold command and drag the PIP window anywhere on your screen.
+Vote, I would like this feature also, I want to be able to resize and position the browser on my screen so I can work and watch at the same time. Currently if I try to resize the browser it shrinks the video.
