To be more specific, it's known as "Alegria" or "Corporate Memphis".

There has been some 4chan analysis on what purpose it serves. E.g., erasing skin color and Cartesian sense in order to avoid "body shame" or whatever. Though that begs the question why every ad, banner, and header has to have peoploids on them doing nothing relevant, instead of images at least vaguely related to the business. This bothers me the most from certain grocery stores and similar, and those even keep realistic skin colors. Maybe that's one step more woke than even Alegria, I don't know. It's all a step down from their exclusively-black stock photography, because it's confounding enough to be distracting.

(Sadly, neither Infogalactic nor Conservapedia seem to have entries on it. The boomers are behind the times.)