To what extent does John Berger's current lifestyle in France reflect his left-wing/Marxist principles?

I think that you will need to give more specific detail as
to what exactly you seek out of Berger's time in France and his connection to Marxist
Humanism.  In my mind, his work right now seems to be consistent with the Marxist idea
of seeking to explore the condition of alienation across the globe.  The seat of this
analysis starting in France is reflective of how many Marxists set themselves up in
France to examine the rest of the world.  Reminiscent of Sartre, himself a Marxist
Humanist, Marxist thinkers found a community in Paris, in particular, where they could
perceive and analyze the world through Marxist commentary from France.  Berger's
collaborations with other writers/ thinkers across the globe, including his own
daughter, focusing on struggles in places like Palestine and its current challenges with
Israel, as well as the sensitivity to the world challenges with alienation are all
representative of that idea that France and modern intellectualism seem to go so well
together.  Yet, outside of this, I don't see anything particularly new in Berger's work
that makes it intrinsic to his location in France.