Scrum does not help with effective communication at all. Its only tools for feedback are code review and retrospective. Its tools for teaching are code review, demos and planning sessions. There is literally no place in it for private feedback or some kind of learning plan or a weaker developer having tasks adjusted so that he can catch up (getting simpler ones, or only frontend ones till he learns that), literally nothing. And with public feedback, it provides zero guidance on how to do it anyway.

Instead, scrum prevents effective, safe and compassionate communication. It provides rituals, that is it.

> The catch is that changes should be agreed by all, rather than one member going rogue. "Rockstars" hate scrum.

Neither of these is true. Scrum is inflexible and the moment you change the process, you are not doing scrum and you will be forced to go back to scrum. Second, you will need to specify what you mean by rock starts. If you mean toxic personalities, they do well in scrum. If you like to control other people, scrum provides quite a lot of opportunity for that.

What it does not provide is opportunity of people to use full extend of their capabilities. People who are able to perform well and able to get along with others, you will definitely do better in processes that allows you to perform and get along with others. If rocks start here means a positive, a capable non toxic person with good social skills, yeah, those tend not to like scrum.