I would guess I'm in a small minority but I don't want my browser to play media. I want to use separate applications for that. The browser can know what I want to launch, and offer to do it, but I don't ever want media to play within a web page.
You are not alone. Even ignoring the problems of Flash, most web players are so bad I much prefer to just pass URLs to mpv but ... I don't want them to be better, I want it to be easier to use external programs of my preference.