What’s your definition of a digital nomad? How often were you changing location? I think this does play a role in how sustainable the life style is for you. I move slowly, work on longer assignments in co-located teams while taking on some remote contract positions.
I’m also used to not having a home in the traditional sense.

You mention short and long-term goals in your closing paragraph. I agree with you that a short-term focus on excitement and novelty do not lead to long-term learning, personal and professional growth.