Hello Mariusz,
The msDS-UserPasswordExpiryTimeComputed sync to Azure AD is not supported and thus will not be included in the Get-MgUser command output. Please see note in article for further details. The Info and PasswordLastSet attributes are not exposed by the Get-MgUser command. The command however does output the value for LastPaswordChangeDataTime. Please provide your feedback and suggestions on the Microsoft Graph Feedback portal.
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Thanks.