How to distinguish Middle QA from Senior Qa using the example of writing test documentation?

Question

Software testing

We all know that the competencies between senior and middle testers are very specific for each company.

I would like to hear an opinion: how does your company distinguish documentation from these two positions? Interested in writing documentation from these two positions.
There is a middle tester and a senior, and they both write test documentation differently, with a different approach to test design, I would really like to read articles (if any) or comments in which there are at least some answers to their approaches in different companies.