Change world?

Working well on samsung Galaxy s8 and even streams well to samsung smart tv.

Is there a hack to change the worlds like you can on Windows and ios?

I have an S8 and can’t get it to stream to the Samsung smart TV. Do you use screen mirroring (mine only seems to do videos/pics/music, not apps) or a separate “streaming to TV” app?

I use the samsung tv cast app, you need to download the same app on the tv and pair using your ip address.