Literally just last week I was showing several dev teams how to cut days out of their troubleshooting time by using an APM that can capture debug snapshots from production. Combine with source indexing during builds and code versioned with the Git commit id and you can jump to the line of code with the issue in about a minute. You’ll see the stack variables and everything. This is possible even in a distributed microservices monstrosity.
It takes like a day to wire this up.
“We’re too busy for that today, there’s an issue in production!”