Virtual Desktop is stuck at the windows logon screen asking for username and password for a long time.
Later you do nothing and it will login to the desktop automatically.

Check CDF tracelog if there is any 3rd Party Credential Provider.
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72335,3,2022/10/26 00:47:18:57989,9088,5768,1,ICA Service,,0,,3,Information,"Citrix.Portica.EnforceAutoLogonHelper.RegistryCheckHas3rdPartyCredentialProviderInstalled Detected 3rd Party Credential Provider with Guid: 01a30791-40ae-4653-ab2e-fd210019ae88",""
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Uninstall the 3rd Party Credential Provider or delete it from register HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\Credential Providers\{01a30791-40ae-4653-ab2e-fd210019ae88}

Note: Backup the register before you change anything in it.

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Problem Cause

Auto-logon is waiting for the response of 3rd Party Credential Provider for quite a long time.