>not having preference between working on three parts of the system is not abnormal.

I suppose it depends on the team and industry. This would be unheard of behavior for games, for example. Why you taking a pay cut and likely working more hours to just say "I don't know, whatever works?". You'd ideally be working towards some sort of goal. Management, domain knowledge, just begin able to solve hard problems.

Welp, to each their own I suppose.