IT “rules and regs” is whatever bullshit the IT department at any particular company chooses to peddle, IME (which is 2 decades of software dev, now, across multiple industries, so you can take that attempted Courtier’s Reply back to whatever poor IT hell you found it in).
ETA: You will note that I’m not saying that that’s how it *does *work all over, I’m saying that’s how it *should *work for everyone, and how it does work at several companies I’ve dealt with - IT sets standards for *which *browsers and add-ons are acceptable, and people can install whichever one they like (systems usually comes with Edge pre-installed anyway, nowadays, and most people install Chrome themselves).
Companies that try to micromanage what browser you’re using are failing at IT.