The other issue for me is ‘desktop site’. Firefox doesn’t remember your choice long term or short term. Every time I leave the app for more than 10 seconds it refreshes the page and resets that setting.
Chrome will remember that setting even across new tabs. It’s important to me because I have half a dozen self-hosted services I manage mostly from mobile and I find them all easier to use with that on. I use desktop sites from mobile more than any other webpages on any platform.