Hi @Peter C. Jackson ,
We could try to use Baseline to achieve it.
Kindly specify the registry value to assess for compliance on computers, hive name is \HKEY_LOCAL_MACHINE, Key name is \SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate, Value name is WUSever, and the registry value must satisfy the SUP/WSUS if present. Here is the detailed screenshot:
Please collect these registry values which are shown on the side of clients, and configure some baselines to get the information.
Besides, there is the Microsoft doc about Baseline, please refer to it:
https://learn.microsoft.com/en-us/mem/configmgr/compliance/deploy-use/create-configuration-items
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