The answers to this question suggests they are on topic, sometimes. However, the Help Center "on topic" page does not state this type of question is acceptable, and explicitly states that "legal advice or aid" - which I would assume licensing questions would fall under - is off-topic.
Furthermore, other sites on the Stack Exchange network have conflicting or outdated information that makes this even more confusing.
My suggestion:
- If software licensing questions are allowed here, please update the "on topic" page to explicitly include them in the list of allowed question types, with any provisos as to when they may be asked.
- If such questions are not allowed here, please update the "on topic" page to include this in the list of off-topic questions; I would amend the last item to read "legal advice (including licensing questions) or aid".
And yes, I appreciate this may be considered a dupe of Reconciling "no legal advice" and "yes software licensing", but the "canonical" question that that question links to (When is a software licensing question on topic?) also refers to items in the "on topic" FAQ that no longer exist.