@Ed Newman , For the phenomenon, it is the same in my lab. When the policy is deployed successfully without any error, the deployment shows notsecure. Research, not finding any official article describe this.
We can feedback it to Intune uservoice in the following link. Meanwhile, I will do more research to see if I can find more information about this.
https://microsoftintune.uservoice.com/forums/291681-ideas
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