Feature Request: One-click 'Presentation Mode' to hide desktop clutter & pause notifications

Whenever I share my screen on Zoom or record a tutorial, I have to manually quit desktop widgets to avoid leaking notifications.

Proposed 'Presentation Mode' toggle:

1. Instantly hide all floating widgets, scratchpads, and badge counters.
2. Mute all plugin toast alerts and sound chimes.
3. One click after the call restores your complete workspace layout.

Would anyone else find this helpful?