Exactly? The interface is god awful, if you’re running a dark theme then your icons will be unseeable (black on black) unless you enable experimental features. The interface is straight out of the early 2000s.
Erm. I don’t have any experimental features enabled, and my icons aren’t black on black as far as I can see.
I’ve been using only Libre Office for about the last six years for the daily running of my business and I have no problems. Furthermore, I despise the ribbon interface, give me an interface from the 2000’s any day.
Between two evils, Firefox is the comparative good guy. There’s not a chance in hell I’m using anything based on Chromium, I’ve been using FF for close to two decades now and I’ve experienced very few dealbreaker issues.