Using older versions of Outlook for Mac for personal email and calendar
For those who haven't see the fix ...
"Microsoft has responded (after 2½ years and 763+ complaints and requests from Mac users) with a fix for the missing Inbox Email Count in New Outlook for Mac. Some of you may have already stumbled upon it …
If you hover your mouse over a folder name (including the inbox), it will tell you total emails in that folder.
(Don't judge me by my inbox item count.)
FYI: I am on a MacBook Pro (16-inch, 2019), Ventura 13.4 using Outlook for Mac, v 16.73.2 (New Outlook).