To log-out from an account:

  1. Hover over the concerned app's icon
    → The sub-dock appears
  2. Click on the gear icon in the top right corner of the sub-dock
    → You'll access the settings of your app with the list of all current logged accounts
  3. Click on the "x" icon at the right of any account to remove it.
    → You can always re-add accounts later.

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