1. The Force Quit window
Press ⌥ ⌘ Esc, select the app and click Force Quit. Apps marked “Not Responding” are the frozen ones.
2. The Dock
Right-click the app’s Dock icon, hold ⌥, and Quit turns into Force Quit.
3. Activity Monitor
For apps without a Dock icon, like menu bar apps: open Activity Monitor, find the app, select it and click the ⊗ button, then Force Quit.
4. Terminal
killall "App Name"
Use the name as it appears in Activity Monitor.
Menu bar and notch apps
Apps without a Dock icon don’t show in the Dock. NotchMind, which I make, can be quit or restarted from its own menu: right-click the notch and choose Quit or Restart. If it doesn’t respond, use Activity Monitor.
The whole Mac is frozen
Hold the power button (Touch ID button) for about 10 seconds until the Mac turns off, then turn it on again. Unsaved work in open apps may be lost.
NotchMind