When you call $company support about anything related to their web applicaations, one of the first questions they're instructed to ask is "what browser are you using? X? Have you tried using Chrome instead?"
9/10 (maybe 99/100) times, the issue has nothing to do with the browser, but these questions have a strong normalizing effect. Even if the browser has nothing to do with it, people who don't know better will stick to Chrome, "just to be safe".
Amazingly, this still happens today.
I run into it occasionally. Most recently over the weekend on a county voter registration web site which stated that Internet Explorer was "required."