If you could not mark Valve's Steam as a threat that would be great

This application has only been around since 2004 and quite well vetted by tens of millions of users. It would be nice if you could put just a tiny bit more scrutiny towards false positives on such popular and long-lived applications that would be great

You can report a suspected FP here: https://www.avast.com/false-positive-file-form.php

And what makes you believe it is a false positive ?
It doesn’t matter how long a certain software exists, it can always get infected.