It looks like “Goose Mode” is a Notability feature or Easter egg rather than anything harmful or random. A recent Reddit post mentions seeing a goose name and a switch for “goose mode,” which strongly suggests it’s an in-app setting or playful feature tied to the app.

What it probably is

Notability has been adding more AI and study-focused features lately, like Notability Learn for summaries and quizzes, so the goose may be part of a newer feature rollout, experiment, or fun UI gimmick.

Why you might be seeing it

  • A new feature toggle that was enabled in your version of the app.
  • A limited rollout or A/B test showing different users different UI elements.
  • A playful Easter egg meant to make the app feel more memorable.

What to do

  • Check Notability’s settings or feature menus for anything labeled Goose Mode.
  • Update the app if you want the latest official features.
  • If it seems confusing or buggy, contact Notability support from their help page.

If you want, I can also help you figure out how to turn it off or what it changes in the app.