When opening the application, ID can dramatically improve the user experience and the opportunity to show new features (in this case, the new Share feature) by giving the user a choice to opt-into learning about a said new feature by presenting the user with a [yes | no | maybe later | never show again] dialog message.

Currently, on a MacBook Pro running Catalina (10.15.7), ID 2021 immediately starts looping a tutorial animation within a fairly large overlay which appears to be intended to promote the new Share functionality. This all happens immediately when the rest of the UI is rendered onto the screen with the overlay sitting above the rest of the UI covering up about 50% of the available real estate. The looping is infinite and without any obvious mechanism or user affordance to hide the tutorial or close it. This happens on the first run of the newly updated app (2020 > 2021). I have not tried to see if it would do the same thing on a second and third run.