Meta has officially discontinued the Facebook Messenger desktop application for Mac and Windows. Users are encouraged to transition to the web-based Messenger.com and the main Facebook website. Notifications will inform users of the app's shutdown, providing a 60-day window before access is blocked. The Messenger app for Mac is being deprecated due to its inability to compete with business-oriented alternatives like Zoom and its lack of essential features such as screen sharing. Meta's focus is shifting towards merging Messenger functionalities back into the Facebook app. Despite the app's discontinuation, core features like encrypted messaging and media sharing will continue to be available on the web version.