I actually enjoyed a maintenance project I was on. There was less time pressure. Finding and fixing a bug is a logic puzzle in its own right.

So things can be largely a question of perspective.

I actually love chasing down other people's bugs. I often get to fix other developers new shiny features shortly after they've hit production. And I love the challenge.

It's also nice that bug chasing has less of an expectation of giving good times estimates, which the software industry is famously poor at anyway.