As an easily understandable use case, it seems conceivable to have adaptive information presentation, such as displaying more detailed information when squinting, or zooming in on specific information when squinting. Alternatively, a more dynamic approach could involve displaying the other person’s perspective in a shifted reality, or transitioning back and forth along the Reality-Virtuality Continuum.
These concepts might not have been implemented yet, as indicated by this article.
However, it seems that this document already addresses these ideas. Although, it appears to treat them strictly as binary gestures – either present or absent.
For further exploration, refer to this article.