I'm using Firefox for pretty much everything including Google apps, but the one thing I do wish Firefox had is support for casting via Chromecast. In my experie

I'm using Firefox for pretty much everything including Google apps, but the one thing I do wish Firefox had is support for casting via Chromecast. In my experience, Chromecast support has been sorta spotty even on Chromium-based browsers like Vivaldi or Brave, forcing me to keep Chrome proper installed on my PC for when I want to cast a YouTube video onto a bigger screen. Is this bit of functionality too proprietary or entrenched enough that it cannot be ported to any non-Chromium browser?