To disable it, simple navigate to this Registry Key on the RDS server:
HKLM\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\TerminalServer\CentralPublishedResources\PublishedFarms\[FarmName]\RemoteDesktops\[FarmName]
and change the ShowInPortal REG_DWORD from 1 to 0.
Here, you can also update the RemoteApp Name by changing the value of the Name REG_SZ.
No need to restart any.
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