People seem to use workflow for all of these things:
#1 Business process modeling and automating platforms - Camunda, BPMN, jBPM etc.
#2 Assembling together software functions (also called tasks, sometimes) for getting an output data - Airflow, Cadence, CWL is related too.
#3 Moving one entity (bug, document, deal) through different stages of a state machine, until the entity reaches an end state - Sharepoint workflow, Zoho Orchestly, Comala workflows
#4 Orchestrating several apps together for automating something, usually as reactions for events - Zapier
When developers talk about workflows, it's mostly about #2. When business people talk about workflows it's mostly about #1. When managers/leads of a team talk about workflows it's mostly about #3.
We should accept that Workflow as a word is too ambiguous, and come up with what kind of workflow category the tool belongs to, before branding it as an "one stop solution for all things workflow".