Yes, I can confirm that all 7 of those demo slides work in this setup. I think the Alex Cameron video is YouTube, and it plays fine. The Future islands video also plays fine (MP4?).
The Simple TV Display displays Foyer in an Android Webview. So it should display very similar to how any mobile android device would display (minus browser extras).
It works great on a Fire TV Stick ($30) with app Simple TV Display ($10).
Chromecast solution still requires another PC to cast from. But Fire Stick is all you need by itself.
More details on the app here: https://www.simpletvdisplay.com
