It’s an apk that can easily be installed. Either download it from the
browser on your android tv or send it with an app from your
phone.Thishttps://play.google.com/store/apps/details?id=com.yablio.sendfilestotv&hl=de&gl=US&pli=1worked
for me
While I can’t currently test that, I’m guessing that doesn’t work. The
functionality came with an update of
thehttps://www.apkmirror.com/apk/google-inc/chromecast-built-in/app
