Closest I can find is the German word ‘fachidiot’. This describes a person who is a specialist in their field and subsequently believes they are expert in fields they know nothing about.

I think it’s to do with brain science. The idea being that the simplification of typography and images aids memory retention while remaining legible across multiple digital contexts. A number of major brands have rebranded with utilitarian sans serif lately, so there must be an economic imperative…

‘The best way to predict the future is to create it’ - Alan Kay