Keyword cannibalization?

Question

Search Engine Optimization

Good afternoon!
What is keyword cannibalization is, in principle, clear when the content of the page, including the title, h1, description meta tags, are the same.
But I would like to ask the opinion of experienced users on a particular example of two titles with different page content - the general category "door handles" and the subcategory "door handles on a round overlay" .
title #1 doorknobs - buy....in a store like this....
title #2 doorknobs on a round escutcheon - buy....
1. Will Title #2 rank for "doorknobs" HF query or only "door handles on a round escutcheon" LF query?
2. Is it worth removing the word "door" in No. 2
3. How to deal with the product card in this case? "Door handle ... such and such model" or "Handle .... such and such model"

Answer 1

Let's look at these questions in detail.
1. Let us be interested in the RF query "door handles". The correspondence between the request and the title TITLE by Yandex and Google (to a greater extent) is determined by the BM25 formula. If you look at the root of this function, it will be clear that the more "extra" words in the title, the lower the BM25 coefficient, which indicates a lower relevance of Title No. 2 to the considered high-frequency query.
If we consider the low-frequency request "door handles on a round overlay", then the BM25 for Title No. 2 will be higher. Therefore, the relevance of the second heading to the low-frequency query is higher, which means that this heading has a higher chance of being ranked by low-frequency.
2. Whether or not to remove the word "door" from the headline, you must first evaluate whether they are looking for handles at all and whether they are looking enough for handles along with this word. Logically, handles in this life are different, so the clarification "door" is an important signal that we are not talking about office, not about children's pens, but about furniture, building materials. Important signals for search engines must be left.
3. The answer to the third question follows from the second.
Good luck in promotion!