This issue also a topic with macOS 12.3 We have a filter at our proxy examing the network traffic for "CFNetwork" or "Macintosh" because macOS generelly sends some requests unauthenticated to identify the requests that are not going to block an ip address. This has worked fine until macOS Big Sur An unauthenticated requests in our company means that the IP address will be blocked for a time for all internet traffic (it is a Cisco recomondation).
As far as the user agent is no more present (not only for requests to Apple, also to OneDrive from MS, launchdarkly and opendns/Umbrella) the filter does not work anymore in about 50% of all cases.
DietmarM
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