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One alternative is to subscribe to iCloud calendar with your Exchange/O365 email accounts or any Outlook account, and then sync the same accounts in Outlook for Mac. See details:
It already works on iOS so why not just port this to Mac? it's a bummer for sure.
Calendar to show on CarPlay please.
Please. Include Outlook Calendar in CarPlay. The option for Siri to read emails as well.
Please add support to CalDav from Outlook for Mac.
After all of the time still nothing. same for the infograph faces as well.