Hey Pamela,
You’re right - the “Provisioning Completed” trigger can be noisy. SailPoint provides a variable in the trigger context that you can use to filter and make it more specific. Take a look at this discussion of the same thing: Provisioning Completed Workflow Trigger Filtering - Identity Security Cloud (ISC) / ISC Discussion and Questions - SailPoint Developer Community
In that discussion, they talk about how to filter on account creation events, like you asked, in the workflow:
$.accountRequests[?(@.provisioningResult == 'committed' && @.provisioningTarget == 'Test Active Directory' && @.accountOperation == 'Create')]