A screenshot can prove that a setting existed at one moment. It does not automatically show that the control was designed for the right risk, operated over time or reached the systems that mattered.
Useful evidence begins with a decision. What must an owner know before accepting risk, funding remediation or concluding that a control works?
Trace evidence to purpose
The strongest record connects an objective to a risk, a control and a test. That traceability helps reviewers distinguish a missing document from a control failure.
Write for action
A finding becomes useful when it explains consequence, confidence and proportionate next action. Evidence should reduce uncertainty, not merely increase the size of the file.