I tried Series Edge browser, it warned about using a supported browser version, then warned about no controller detected. I told it launch anyways. It errored out saying could not connect to server.
I uninstalled Fortnite locally, restarted the console, brought up Fortnite GameCard but only option presented was "Install All" with No Option for "Cloud Play".
Well, i am of the belief that if you can play it locally, it's the preferred way to play but still, then we know