I read a great book a few years back about the lives of African slaves owned by native Americans, native Americans who took said slaves with them when they were exiled by white settlers. The fact that I had not known of such things is a remnant of the noble savage concept. I was taught little in school about native american views on class.
Note that nothing you've pointed to is exclusive; Mayan society was very different from the societies of New France. Indigenous America is not a cartoon, but a large collection of societies with different organisation.
Another interesting point in the book is that there are many instances of enlightenment thinkers explicitly pointing to indigenous Americans as the source of their ideas... Which has tended to just be ignored or glossed over, in favor of the great man theory where these ideas spring from pure European genius.
And describing indigenous people as "societies that made sure no one went hungry" without mentioning warfare, torture, and slavery does appear to be restating the classic myth of the noble savage. These practices were not limited to the Mayans, but were widespread across the Americas, including New France, as the additional links I added above describe.
https://shanesafir.com/2020/12/before-maslows-hierarchy-the-...
The biggest problem with that theory is that indigenous Americans generally did not hold notions of equality and individual freedom.
1: https://en.wikipedia.org/wiki/Slavery_among_the_indigenous_p...
2: https://www.canada.ca/en/department-national-defence/service...
3: https://en.wikipedia.org/wiki/Iroquois#War