As Peter Drucker said, "It's less important to do things right than to do the right things." Effectiveness is more important than efficiency.
The time tested SIPOC process modeling notation supports a business oriented focus on doing the right things first and doing things right second.
Supplier > Input > PROCESS > Output > Customer
By contrast the workflow oriented BPMN notation is aiming to help automate documents & data workflows between employees & departments e.g. in public administrations. BPMN's focus is on efficiency.
However with the advent of pervasive digitalisation and AI machine learning process automation, tasks can be combined without the need for human based workflows.
SIPOC is a stringent but easy to understand & powerful methodology for business oriented process modeling focusing on input to output transformation for its stakeholders.