Yes, at my previous job we were one of the first (if not the first) to switch from POP3 to OAuth for email listener. I hit a few different issues initially and got APARs created to get them addressed. To use OAuth for email listener you must be on 7.6.1.2 or higher and I would recommend applying the latest IFIX to address some of the challenges.
The biggest learning curve for me though was on the Azure AD side and how to configure it because there wasn't much documentation on it. We have some documentation that we link from this central location: https://www.ibm.com/support/pages/email-listener-oauth-configuration-office-365
I unfortunately do not have access to Azure AD or Office 365 at IBM so I can't configure this end to end but if you have questions we don't answer in our documentation I can try my best to answer them.