Radio Boss Key -
The Broadcaster's Cheat Sheet: Mastering RadioBOSS Hotkeys
Features:
Cons / Downsides
On macOS: use AppleScript or Automator to pause system audio or a specific app, then switch focus to another app or full-screen a neutral window.
In browsers: use an extension or bookmarklet that (1) mutes the tab, (2) navigates to an innocuous URL (e.g., search engine or docs), and (3) clears visible track titles from the page DOM where feasible.
On mobile: rely on notification controls or create a shortcut in Shortcuts (iOS) / Tasker (Android) to stop playback and open a cover app.
For streaming sites: many support keyboard media keys (Play/Pause), but extensions may be required to hide on-page track info.