Using older versions of Outlook for Mac for personal email and calendar
Same here with me
It's not a Mac Model thing as I tried it with an i7, a M1 Air and the new M1 Max. It happened with the last Microsoft Office Update 16.56 on Monterey 12.1.
What is really annoying: It's the third or forth time that this is happening in a few years. Obviously Microsoft has some really lazy development and testing guys for Mac ...
Shame on you MS...