Why Is My Outlook Calendar Blank. Change how you view your outlook calendar. If you are using cached exchange mode, go to file.

In outlook on the web, select the calendar icon. Open a shared calendar using outlook web app.
Click On The “.” Icon In The Upper Right, Then Click “Downloads And Updates.”.
It's no longer an outlook client issue.
To Do So Kindly See Create An Outlook Profile (Microsoft.com) You May Also Refer.
In outlook on the web, select the calendar icon.
An Empty Read Only Calendar Is The Only One Available.
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In The Settings Pane, You Can Change The Time Zone, Date.
I have outlook 16.63, macos monterey (12.4):
To Do So Kindly See Create An Outlook Profile (Microsoft.com) You May Also Refer.
Check to see if the person sharing the calendar has identified the new user as being at least a reviewer.
My Outlook Calendar Is Filling Up With Spam Email Messages Alongside Regular Events Being Added From My Incoming Mail, And Swamping Them.