Is the Outlook version 16.58 that you are using a beta version? It appears that I have the latest version installed which is 16.57? If so, are there any other issues that you've found?

Do you use IMAP accounts or Exchange?

The new updates only appear to solve the issue if you use the new Outlook and have exchange accounts, doesn't work for any of my IMAP accounts at all, new or old Outlook

Are you using IMAP email accounts or exchange? I found that if I change to the new Outlook version 16.57 i can search my exchange emails no problem, but not all all with my IMAP accounts

Hasn't worked for me except when I change to the new Outlook and search within one of my email accounts that is exchange, won't work at all with my IMAP accounts

I'm hearing you loud and clear, I have had to go back to using my old iMac as I just just swap to the new MxcBook Pro without being able to search through emails, just not good enough

Apple should be constantly reviewing this page to check what issues users are having and respond accordingly (I say with fingers crossed)