I don’t know about you but I am perfectly content to use a free browser and open either a nonfree browser or an app if I want to use a feature that is not available in my preferred software.
I don't know about you but I am very sad that I can't really recommend a browser not made by evil-mega-corp (or their associates) to friends and family because for some stupid reason that I can't explain to them, they aren't allowed to view high quality streaming video with it.
For casual users there exist a huge chasm between "everything just works" and "everything works except x, y, z and those you must open seperately with Chrome"....
I think many people will rather just use the 1 thing that does everything perfectly well, rather than switch back and forth between two browsers because one is slightly better "most of the time" but also completely unusable some of the time.
For me, I am thrilled to be able to make Ladybird my main browser eventually, and consume my streaming in other apps and browsers.