If you are syncing local AD users to Azure AD and using Seamless Sign-On (see https://www.ajni.it/2021/05/configuring-azure-ad-connect-for-user-synchronization/ and https://www.ajni.it/2021/05/configure-seamless-sign-on-for-microsoft-365-login-with-azure-ad-connect/), there is an awesome registry key that automatically creates the Outlook profiles without user interaction.

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Outlook\AutoDiscover

DWORD ZeroConfigExchange 1

Alternatively, you can add the DWORD ZeroConfigExchangeOnce 1 key to automate the creation of the first profile. Successful profiles have to be created manually.

References:

https://docs.microsoft.com/en-us/outlook/troubleshoot/profiles-and-accounts/let-zeroconfigexchange-automatically-create-first-profile