I'd be interested in the rabbit hole of flow state. Also with regards to the dopamine rewards of solving a bug as motivation.
Sometimes using a LLM can assist these and sometimes it can feel like cheating myself out of a good thing and I'm not entirely sure where the borders are. It could also be related to a sense of ownership or pride in ones work and seeing the value in doing quality work.
Debugging can be super fun as we eliminate possibilities and it feels like we are converging to a solution. There have been instances where Claude (Opus family) was not able to effectively debug and I had to step in and do it. But debugging an over-engineered library for example, can become very wearisome. This is when I am really thankful for having Claude Code, it is able to figure out the bug and its fix/workaround pretty fast. I can then get back to doing my main task instead of spending an indefinite amount of time stepping through sloppily written code.