I (another layman) don't think AI research is divided that way. The most visible area of research is "machine learning", where the goal is not AGI but to find better algorithms to solve well-defined statistical engineering problems. In contrast to that, there is a wide area of research that doesn't focus on well-defined problems. On the philosophical side, it's about understanding what intelligence even is. Or about understanding what tasks the brain is solving, or why we make some mistakes but not others. On the more technical side are the embodied people who focus a lot more on grounding of an agent's perception and on interaction with the environment, rather than thinking about intelligence as a passive task that only involves the brain.