Using older versions of Outlook for Mac in business environments
Yep the TERMINAL solution worked to stop/start mdutil.
I got preboot errors too...but it still worked not too long after a reboot.
My Monterey machine that I setup after getting my new Ventura MBP 14" showed the same issues, but I expect the fix will work there too.
Also helps that my Tasks are reappearing again since that seems Spotlight dependent showing only the categories you pick.