It's driven by a lot of things. No only raises. Just like anything else in the world, its not one-dimensional. For example, someone might switch jobs because

It's driven by a lot of things. No only raises. Just like anything else in the world, its not one-dimensional. For example, someone might switch jobs because you think its the higher offer elsewhere. But its also the burnout at the old job. Or they did not like the manager, and they also want to work with another tech stack. The higher salary is the push, but there are other lesser reasons that add into the decision as well.