Does the searcher want what you sell?
Check the result type before the words
Search the query yourself and read what ranks. If the first page is all definitions and encyclopedia entries, the searcher wants an explanation, and a product page will not satisfy them no matter how well it is optimised. If the page is full of supplier catalogs, price lists and comparison tables, the searcher is shopping.
Then read the query wording. "How to choose a stainless bottle" is research. "Stainless bottle supplier" is procurement. "Stainless bottle MOQ" is a buyer already in conversation with someone. Each wants a different page, and the difference is visible in the phrasing before you open any tool.
Fail condition: you would need to write a different page type to answer it honestly.