Unable to show shared calender in native Outlook for macOS

Dear all,

me and my team are unable to display a shared calender in our team working on macOS.

I created an calendar and set the sharing permissions properly. Via OWA I was able to share the calender with every team member and the shared calender is accessible for them via OWA.

Unfortunately the calendar is not shown in Outlook for Mac. Does anyone know how my team mates can see this shared calender in their native Outlook?

We are using version 16.81.2 of Outlook.

Thank you in advance