OWC Blog – 10.25.19 (10.23.19)
With macOS (Sierra and higher), Apple has provided a convenient — and fun — Picture in Picture (PiP) feature. You can “float” a video window from Safari or iTunes/Apple TV over your desktop or a full-screen app. You can see my article on how to use it here. However, with the introduction of Safari 13, Apple has kicked things up a notch.
Source: How to Use the New Picture-In-Picture (Pip) Features of Safari 13