It’s probably worth dabbling in. I have only used them to understand how to do threaded programming better and how core CS concepts work in practice as it helps

It’s probably worth dabbling in. I have only used them to understand how to do threaded programming better and how core CS concepts work in practice as it helps to have different perspectives on how to tackle a task. For material career help it depends. Having some experience with it will give you more flexibility, though it might be hard to get resume worthy experience with it.