It's no secret that submitting an app to the App Store is much more difficult than submitting the same app to the Google Play Store. Trying to get your app past Apple's reviewers is a bit like trying to smuggle pizza into North Korea.
My hope is that you have found this article after having found a half dozen or so other tutorials on how to get your Virtual Camera running in OBS Studio 26 or higher on a Linux Mint 20.1 Cinnamon machine, and after following the (often conflicting) instructions on each, you still don't have your Virtual Camera running in OBS.
I have been an avid reader of Games magazine (now called Games World of Puzzles) since I was a kid. I first encountered Games when I was flying somewhere with the fam and I went in an airport bookstore to pick up something to entertain myself during the flight.