I had a vibe-coding phase that I think largely followed the popular arc and timeline from optimism through to disappointment.
Definitely felt some burnout or dumbness after it, trying to get back into thinking for myself and actually writing code.
I think it's like gambling, you're sort of chasing an ideal result that feels close but never happens. That's where the exhaustion comes from imo, much more than if you were switching from manager to IC which I don't find tiring. I think its more a dopamine withdrawal than context switching.