At a new job I asked about the crash rate of the mobile app during the interview, and they brought up a dashboard showing it was very low. I wasn't paying enough attention, but they were showing me the daily crash rate, and the day rolled over in UTC time, and had apparently just rolled over in the middle of our day, so not a lot of crashes yet. It actually had an abysmal crash rate. Structured / designed poorly at the core.
Fixing that app took years. Some of it was definitely soul deadening, but there was also something good about turning it all around and people seeing the positive impact as things kept getting better.