Personally, I’ve experienced the opposite. Almost all my coworkers have at least a BS in CS/CE/DS and only a couple have an alternative such as a bootcamp.
Software is a diverse field! I've worked at pure software companies employing largely CS people; specialized technical software companies employing more mechanical/aerospace engineers; and in business-focused software companies employing people with non-traditional tech backgrounds.
My guess is this depends when you got into tech. I am a lifer and have been at it since high school; most of my peers got in through sheer passion, when it wasn't nearly as crowded