Implementing A Request Response Type Trigger in Workflows

Is it possible to filter the event trigger on requests that have passed 1st approver (if we have multiple stages of approvals)?

Else, could it be possible to have 1 approver stage, and in the workflow dynamically add a 2nd approver to the access request for identities that are, for example, in a specific department? I have not found any APIs where I can PATCH pending access requests however…