Outlook for Mac 2019 - Search not working :-(

I had the outlook indexing problem after I migrate to my new MacBook pro. (Mac OS 10.15.6 and Outlook 16.40) Almost two days I was going through blogs and trying many things like re-building spotlight index, re-install Outlook, install some Microsoft tools, re-create profile etc. etc.

After the long, frustrating hours I went to “Outlook – help – Contact support” option, first time it give me generic documents, second time   I was able to get in touch with a technical support.  They give me the following solution.  I did exactly as mention.  my problem resolved… Thanks to Microsoft support. (I am copying exact instructions, it may help someone frustrated like me.

While using the Search, please check if the search scope is set to “All mailboxes”. Also, check if you are able to search for the items using Mac Spotlight. If it works on the Spotlight search, then quit Outlook completely by click on Outlook Menu > Quit Outlook and then try the steps given below.

Please open Terminal from the Spotlight search and type in the below mdls commands:
sudo mdutil -E /

It would prompt for your Mac Password please enter it (when you type, the password field will not show anything. Just type the right password and hit Enter on the keyboard) and wait for it to complete and then give it some time. Once done, follow the steps given below to re-index, Outlook profile.

1. Choose Apple menu > System Preferences, then click Spotlight.
2. Click the Privacy tab.
3. In Finder:
a. On the Go menu click Go to Folder...
b. Copy and paste the following location into the "Go to the folder:" dialog box and click Go:
~/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles/
4. Drag the ‘Main Profile’ folder to the Privacy tab. Once added, remove the folder, and Spotlight will re-index the folder. Note: You must perform this step for any additional profile folders you may have.
See the following article from Apple to learn more: https://support.apple.com/en-us/HT201716
5. After re-indexing is completed, launch Outlook and check.