In practice
The test is whether it rules anything out. If every reasonable next step still fits, you have a description, not a strategy.
Strategy isn't a roadmap or a set of goals. A roadmap says what comes next. Strategy explains why that and not something else.
Why it matters for product builders
Every prioritization framework reaches a tie. Strategy is the answer you should already have when it asks which option matters more.
What changes in AI-first products
Capacity used to rule out many ideas for you. As building gets cheaper, strategy has to make the exclusions explicitly.