The real choice is between speed inside a managed platform and control across a workflow-specific architecture. The answer depends on integration depth, governance demands, and how much autonomy the workflow needs.
Good when the workflow stays close to the Microsoft ecosystem and you need faster initial assembly with familiar admin controls.
Better when the workflow crosses systems, needs tighter release discipline, or requires more specialized policy logic and evaluation patterns.
Choose the path that best matches the workflow’s side effects, approval design, and need for portability after the first release.