I've been following this movement for well over a decade now, and it's not a heterogenous community. You see the entire spectrum, from people who just want to get really rich and indulge in expensive hobbies like keeping their own private jet, people who end up working and earning more after they're financially independent, to people who are burned out and can only imagine a retirement existence consisting of beaches and Netflix, plus quite a few bitter folks who mostly care about tearing others down.

The 'RE' sort of implies not working, but I've seen plenty of accounts of people who ended up with varying degrees of work and income after they quit their regular jobs. For the folks who seem to seek retirement above all else, I wouldn't be surprised if burnout is both a big part of the motivation and the reason for why that is their main focus.