The iOS versions still would put a video on the Lock Screen if you locked the phone during playback, this is normal behavior and worked that way in Apollo.
The difference is, unlocking the phone and closing Apollo cleared it off the Lock Screen. That seems to be the key difference here, I can force Voyager closed but the video name remains on the Lock Screen.
I agree that this image is not an easy one to see. Try this one (make sure it’s full screen, that makes it easier for me, and start by keeping it physically close to your eyes)