I'm in a similar boat. When I joined my current company the tech was this 700KLOC legacy behemoth stuck in 2005. It was pretty much all tech debt.

With agents I've been able to make a decent sized dent in it. Lots of this gain is due to AI - but the fact of the matter is we still have 50+ bigger projects we could work on, and non-developers building with AI has increased that number.

Busier than ever, because of AI.