Hi anonymous user-0325,
It does not appear to be the same, as Microsoft specifically mentioned Conexant ISST or Conexant HDAudio Driver with specific versions listed over here:
https://learn.microsoft.com/en-us/windows/release-information/status-windows-10-2004
Have you tried updating to Windows 10 version 2004? If you have and you're still blocked, you could try updating the driver from the Microsoft Catalog:
https://www.catalog.update.microsoft.com/Search.aspx?q=Conexant+SmartAudio
In worst case scenario you could uninstall the driver completely and try updating.
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Best regards,
Leon