I went the lean FIRE route, and now work on whatever open-source projects I feel like, plus local in-person volunteer activities. It's a much better quality of life, even though my job had been enjoyable, the extra scheduling flexibility is really nice.
Same - I wasn't sure where I'd stop (always been a minimalist anyways, savings rate above 2/3) but ran into a health issue so seeing what the future holds: taking another crack at the 'career' or maybe something more low key that aligns with my passions or a side project. I just want more time for learning, everything else feels like a distraction.
I'm pretty sure that being at the beach is really just universal marketing shorthand for "being somewhere that no one would ever expect you to even reply to emails from"
Or more generally, just doing whatever you want. I dont think anyone literally wanted to sit on a beach 24/7 365 days a year. However plenty of people would want the ability to just wake up one day and on a whim fly to a hawaii until they get bored then fly somewhere else.