If I'm understanding right, I believe Xbox Cloud Gaming and Geforce Now have used this. They get access to better video APIs by running as a home screen webapp, and aren't at risk of popping the address bar from touch confusion.
Voyager, a client for Lemmy, also installs as a webapp. Similarly, it doesn't show the address bar when you scroll up and down.
But we don't only have to build an environment that allows the doing of popular things. We also need to maintain a society in which unpopular or unusual things can be done. The doing of unpopular or unusual things is itself popular.