Doesn’t anyone use debuggers anymore?

When I have a codebase I dont know or didn’t touch in some time and there’s a bug, first step is reproduce it an then set a breakpoint early on somewhere, crab some coffee and spend some time to step through it looking at state until I know what’s happening and from there its usually kind of obvious.

Why would one need a graph view to learn a codebase when you can just slap a red dot next to the route and step a few times?