Admin can leverage different salesforce tools like Flows,Process Builder(PB), Workflow to automate the business process based on business use case.
For new business use case/implementations, it is recommended to go with Flows against to workflow/PB
Salesforce Screen Flow SfdcOneStop Session 1 -
https://www.youtube.com/watch?v=dNf91oMNrd8
Salesforce Screen Flow Invoked from Experience cloud SfdcOneStop Session 2 -