Hi @Anonymous ,
Per my test, the "Connect to Outlook" option is greyed out on the Mac. Since the feature relies on some components only available on the Windows. So, it does not work in the Mac currently.
After doing some research, I noticed that some end users have also proposed the same request. We request you consider sending your feedback to SharePoint Feedback Portal and let the related team know about your requirement. This is the best platform to let related team hear from you and make the products and services better for you and others.
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