Microsoft provides Get started with Remote Desktop on Mac to describes two ways to obtain Microsoft Remote Desktop for Mac. You can choose one of the following 3 ways to get Remote Desktop for Mac OS:
We recommend downloading the beta client of the Remote Desktop for Mac provided by Microsoft from Microsoft Remote Desktop for Mac. Please note that Microsoft removed the download link from its official website on 2017, and released this beta client at HockeyApp, a subsidiary of Microsoft.
Users from Mainland China may not be able to access this address due to network issues.
This app is not available for Mainland China users. You need an AppleID from other regions to download it.