Do not disturb
One switch to silence everything — notifications and their sounds, across every
service — for 30 minutes, 1 hour, until tomorrow morning, or until you turn it
off. Unread badges keep counting while it is on: you are silencing, not hiding.
Reach it from the new moon button at the bottom of the sidebar, the tray menu,
the File menu, or toggle it with Ctrl+D. While it is active, a crescent sits
on the tray and taskbar icons, and the menus show when it ends.
Your per-service notification settings are untouched: turn the mode off and
every service comes back exactly as you left it.