macOS Remote Desktop client app - automatic logon (no credential prompt)

Sorry if this isn't a good place to post this question. But I'm trying to locate the right place for macOS RDClient feedback now that https://support.microsoft.com/en-us/topic/uservoice-pages-430e1a78-e016-472a-a10f-dc2a3df3450a.

I am trying to automate the launch of RD Client without prompting for a credential. The macOS RD client (GUI) allows storing passwords securely in the macOS Keychain and will use them to automatically log on when double-clicked from the bookmarks. On Windows, I understand there is a way to use a little-known "password 51:b:<myEncryptedPassword>" attribute to pass an encrypted string as a password from the .RDP file.

AFAICT there is no way to completely automate the RDP logon without password prompt on MacOS, for the following reasons:

- No way to pass a password credential (encrypted or otherwise) via https://docs.microsoft.com/en-us/windows-server/remote/remote-desktop-services/clients/remote-desktop-uri
- No way to control the RDClient app via AppleScript
- Bookmarks within app support saving credentials in Keychain, but there's no way to initiate a connection to a 'bookmark' via the URL scheme (bookmarks are stored in a totally separate SQLite database, and password is not contained within)
- https://github.com/PowerShell/PowerShell/pull/9199, so the hidden `password 51:b:myEncryptedPassword` attribute does not work.

- No way to save an .RDP file or any shortcut/alias that includes the password (this would be bad for security even if it were possible!)

Anyone got an ideas here?