Evidence for vulnerability or category?

Hello guys.
I am reporting a vulnerability that is present in many parts of many files in a project, so in this case how should I handle the presentation of evidence? Should I take one screenshot as an example, or should I take screenshots of each and every instance of the vulnerability?

Evidence is always a sample of the findings, not the totality of them, so you must choose the most representative screenshots, it must be from 1 to 5.