What’s a good example of non-Intrusive Interstitials?

Blocking the view of the entire content on a mobile page is seen as a bad user experience and in 2016 Google announced that it would consider intrusive ones as a ranking factor – i.e. they would begin to penalise sites which do this. The best examples are interstitials that don’t block the entire screen and are easy to click away from on mobile. This one on SEJ is a good example.