I am not using the media browser and have removed it from the sidebar but the little button is still on the media cards in Lovelace.
The problem I have is that if the button is pressed, it opens a window which just hangs and I have to refresh the browser / close and re open the app to get rid of it.
I have not set any media sources and HA is running in a docker so it could be hanging because it is struggling with /media as a source, however I dont really want the button at all if possible.