Hi BitTech01-1104,
If your laptops are activated, you really don't need to worry about which key is being used. The key is not your license, your E3 or OVS agreements are your entitlement to use the software. The office activation is operating differently because of the alternative way the licensing works for that software.
If you would like to read more, please see here:
https://learn.microsoft.com/en-us/windows/deployment/windows-10-subscription-activation
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