I agree, user research is an invaluable skill of a good UI/UX developer. I guess this is a roadmap, not a guide, and the author makes a passing mention of it, s

I agree, user research is an invaluable skill of a good UI/UX developer. I guess this is a roadmap, not a guide, and the author makes a passing mention of it, so I consider that sufficient. As a UI developer, I’ve never actually learned to conduct user research (skill that I’m definitely lacking), but during my time in the industry I’ve definitely learned to listen to my graphic designers that actually conduct these research, both to listen to and materialize their interpretation, and to bring my own interpretation. As a novice UI/UX developer I for sure had a lot of biases about user interaction which were deeply flawed, UI/UX research is a really helpful tool in braking these biases.