If you double tap to skip 10 seconds during an ad read, it should appear as a button in the bottom right. It does not pop up proactively. It's algorithmically-b

If you double tap to skip 10 seconds during an ad read, it should appear as a button in the bottom right. It does not pop up proactively. It's algorithmically-based on which parts of the video get skipped most often by viewers.