Biggest drawback to me after trying Firefox are the lack of simple profiles, as in Chrome, which let me separate work from personal from school when browsing, and the fact that all web development is done for Chrome. So many sites don't work correctly in Firefox that I eventually had to give up on it and move back.
I've been quietly doing it for about 8 years and have met many others like that, but you aren't completely wrong. About 3 years ago I tried to become more of a part of the "digital nomad community" and found it to be full of hucksters.