When you turn it sideways
That problem has already been solved, or so it seems. I saw a video of an iPhone X watching a video. The guy turned it sideways and it showed the normal 16:9 (thus black screen on both sides since it is 18.5:9 or similar) but when he tapped to zoom it, it used the whole screen so the video was notched on one side. Which is fine, because if you are OK with losing some of your picture on the top and bottom due to the zoom, losing a little bit on one side due to the notch isn't likely to be an issue and at any rate zoom isn't the default.
Ideally when viewing a web page sideways it would not use the notch, but zooming it would allow doing so. Obviously you wouldn't want to if it was one of those annoying web sites with no margins that has content all the way across from left to right, but if the notch took away some margin - or better yet some of the ads - then it isn't a problem. If Apple convinces web site designers that having no left/right margin on mobile is SHITTY design, then even those who hate the notch will have to tip their hat to it (sort of like how Apple haters have to give them credit for making flash protocol non grata on the web)
Biting the hand that feeds IT
