We just watched it last evening. The DW and myself are retired and use our RV only a few times a year for true recreational purposes - not having to live in it as our home.
We had mixed fealings about what the movie was intended to convey to us about that kind of lifestyle. We really felt quite "sad" after watching it. Mostly sad for the situations that the characters found themselves in, even though many appeared to be enjoying themselves some of the time. We have camped at Quartzsite a few times and of course hence camped around some folks that probably were in the very life situations depicted in the movie.
During our two longest RV trips of 9 and 10 weeks we did get into the feeling of being "free nomads" and it was wonderful for a bit during those short periods. At the end of both trips we were glad we had a home base to return to ... but our home is in a natural setting equal to many of the beautiful places where we camped on those trips.
Here's a bunch of reviews on it ... that are all over the map:
https://www.imdb.com/title/tt9770150/reviews?ref_=tt_urv