Continue to hide audio controls when going to next chapter in full-screen mode

It’s nice that the audio controls get hidden when you go to full-screen mode when audio is playing, but when the app automatically goes to the next chapter, the audio control bar comes back and doesn’t go away.
It would be nice if it never reappeared when you are in full-screen mode. This would make it very clean for making a screen recording of a picture story book or other book that is playing. Voila another video resource for SE.