No, but I do work as a developer and we work pretty closely with the testers. Not back in the day though, I'm not that old but I've been around enough to know that even in the current era of software development the quality and duration of testing varies quite a bit from company to company. Some companies really don't care and the testing is token at best, others like where I currently work are quite obsessed with quality and dedicate quite a lot of time and people to testing a release before it goes out. Of course there are still bugs from time to time but a lot are found and fixed during testing.

Previous companies I've worked at with not-so-great testing were more consumer facing whereas the current one is B2B with a lot of enterprise customers so maybe companies just put as much or as little effort into testing as they think their target audience is willing to put up with.