Implementing Picture in Picture on iPhone in iOS 14

I thought this would be a no brainer and automatically work when AVPlayerViewController was implemented.

Here is the implementation of AVPlayerViewController on iPad and Picture in Picture works perfectly:

Code Block 
- (void)finishCellSelectVideo:(id)videoPath {
    NSURL *videoURL = [[NSURL alloc] initFileURLWithPath:videoPath];
    AVPlayer *videoPlayer = [AVPlayer playerWithURL:videoURL];
    videoPlayer.allowsExternalPlayback = YES;
    AVPlayerViewController *videoPlayerViewController = [AVPlayerViewController new];
    videoPlayerViewController.delegate = self;
    videoPlayerViewController.player = videoPlayer;
   [self presentViewController:videoPlayerViewController animated:YES completion:nil];
   
    [videoPlayer play];
}

However, with this same code Picture in Picture doesn't work on the iPhone in iOS 14. Does this code only work on iPad? Any clues as to what I am doing wrong with the iPhone code?