There are fewer and fewer people that we run into these days who will argue about the quality that an iPhone or smart phone video delivers.
But still a few.
(I can remember when we had to defend Hi8 as a broadcast medium).
In any event, to quell any arguments in the future, The Observer, The Guardian's weekend edition has published a list of movies and TV shows shot on an iPhone. To protect themselves, they have titeled it: A Near Complete List of Movies and TV Shows Shot On A Smartphone.
It's a good thing they covered their rears, because I can think of a number of TV station that are now regularly airing long form stories shot on smart phone. (OK, it's not a 'TV show', but today, what is?)
The article dates from March of this year, and it is aleady a bit out of date - just to show you how fast things are moving. But never the less, it is filled with great clips that certainly prove the point.
Here's one from High Flying BIrd
And here's all the details from WIkipedia, just to save you the trouble
High Flying Bird is a 2019 American sports drama film directed by Steven Soderbergh, from a story suggested by André Holland, with the screenplay by Tarell Alvin McCraney. The film stars Holland, Zazie Beetz, Melvin Gregg, Sonja Sohn, Zachary Quinto, Glenn Fleshler, Jeryl Prescott, Justin Hurtt-Dunkley, Caleb McLaughlin, Bobbi Bordley, Kyle MacLachlan and Bill Duke.