In the past many involved in frontend design might've had a background in human factors or ergonomics, they would also have some knowledge of how the brain perc

In the past many involved in frontend design might've had a background in human factors or ergonomics, they would also have some knowledge of how the brain perceives what's in front of them. I would view this knowledge as quite fundamental but it's increasingly rare to find such expertise in the field now. In my mind it explains a lot in terms of how many UIs are an incoherent mess and why accessibility is considered an afterthought, if at all. Doesn't matter who developed it either. FAANG are just as adept at flubbing basic design principles as anyone else.