I remember that years go (probably 2014) I was in one of the biggest retail stores in Brazil and I saw a different looking operating system in the salesmen comp

I remember that years go (probably 2014) I was in one of the biggest retail stores in Brazil and I saw a different looking operating system in the salesmen computers. Years later I found that it was probably a Linux running Window Maker. It was surprising to see such a niche desktop environment being largely used by non-technical users