After I downloaded the Mac Ventura OS, my Outlook is not searching email. Advice?

Same issue. I contacted support directly from Outlook and got this answer. The solution worked for me!! (I have a Macbook Pro M2 Chip)

Outlook Support:

I will be glad to assist you. With regards to the search issue, let's run a couple of commands on Terminal to manually initiate indexing and check if that helps:

Open Finder and go to Applications - Utilities - Terminal and type the following commands (Press Enter after typing each command).sudo mdutil -a -i offsudo mdutil -a -i onNote: When prompted for a password, please type the Mac user password. This would be invisible. Please type the same and hit enter.Once done, restart the mac computer and wait for about an hour and check for the behavior.Please try and let us know the Outcome. Thank you.

Let me join the chorus of people to say that this works! Like many, I've been having indexing issues for a while and tried multiple solutions, including creating a new profile. None worked until this solution. I encountered multiple errors while executing the steps above, but once I confirmed Spotlight was indexing, I left it alone overnight and Outlook search worked in the morning.

Thank you!

After having tried all Solutions from the Microsoft Site the tip from subdetuned aquired from Outlook Support finally did it.

Ventura 13.2.1 - Outlook 16.70

( tried sudo mdutil -E ( -E Erase and rebuild index. ) before which did not fix it )

Open Finder and go to Applications - Utilities - Terminal and type the following commands (Press Enter after typing each command).sudo mdutil -a -i offsudo mdutil -a -i onNote: When prompted for a password, please type the Mac user password. This would be invisible. Please type the same and hit enter.Once done, restart the mac computer and wait for about an hour and check for the behavior.

Ignore error message for preboot volume, that is protected and cannot be indexed.

Reboot and let mdutil do its work ( Utilities -> Activity display -> ) takes........

In addition, the commands also made the search in the folder ( Finder ) functional again ( before that worked only under this Mac. )
-a Apply command to all stores on all volumes.-i (on|off) Turn indexing on or off.

I'm always afraid to upgrade my mac to newest OS becasue of Outlook for Mac search functionality ceasing to work. I assume running these terminal commands fix search going forward for new emails as well and not just for what already appears in your Outlook, correct?

sudo mdutil -a -i offsudo mdutil -a -i on

Oh yes, I realize that now. Shout-out to @suddetuned!!

So glad it helped you too! Credit goes to the original poster of the working solution, suddetuned.