When you spend hours in a messy codebase to fix a bug properly and add an integration spec to cover that specific case.
And even you do a round of testing on staging + providing screenshots, there is always someone on the team that will write in your PR, "It works, I tested the change on my machine".
I understand that some people are skeptical but to the point of not trusting integration tests + screeshots/recordings then please test it on staging or production next time because if it works on your machine doesn't mean it will work there ;)