Did you completely miss the part where I said “Not the solution, and not a possible solution for everyone, but it is a solution”? I don’t know what you think the usual troubleshooting process is, but it doesn’t start with “uninstall Windows”. Obviously the user was sufficiently intelligent to consider the advantages and disadvantages of switching, and based on that information, chose a course of action that they thought was correct, and it ended up being the solution to their issue.

I don’t know how else I can spell it out for you. Computer users are not dumbasses. They have agency over their own actions.