To me this just seems like a "brand" of homeschooling, sometimes with less structure.
I think students can be given a lot of educational materials or curriculum to choose from and parents or teachers or tutors might be able to help them mix and match different educational resources together.
A framework could be provided and they could choose how they interface with it; I guess with traditional homeschool in contrast, maybe the thought is the framework is more fixed? Or with some "unschoolers" there seems to be no framework at all. This might be a view between these two poles of too much or too little framework given?
How then do you think "unschooling" principles would translate to the work world? I was reminded that the "antiwork" movement might think "unschooling" to be like "antiwork applied to schooling", but I'm not sure the opposite would be true, that antiwork would be like "unschooling applied to work". Would that rather look like some other kind of work reform or improvement?
Personally, I think have a couple of days of pod learning from a specialty of well qualified instructor would be a good additional asset to a homeschooling program.
My internet friend 2Rainbows made a detailed post on UnSchooling and details how her homeschool/unschooling worked.
https://communities.win/c/ParallelSociety/p/141YRwfgAa/homeschool--better-unschooling4-/c