I’m forced to use either Chrome or Edge for my work computer and it drives me crazy.
I’ve been a Sysadmin for a ~decade. I can state with 100% certainty that the reason behind that decision is that you can very easily configure Group Policy to control the behavior and visibility/availability of features in Chrome and Edge. Firefox didn’t have that until just a couple of years ago, and it wasn’t great when it first became available. And to be honest, it’s still not fully baked, but it’s at least usable now from an administrative perspective.
Maybe bring it up to your IT department and include this link in the email/ticket.