I started exactly 30 years ago, in 1992. Honestly, I remember it being pretty much the same as it is now - management gave you vague descriptions of what they wanted, demanded precise "estimates" (but they didn't want estimation, they wanted unbreakable promises), changed their minds about everything but still insisted that you were constantly behind schedule. People were constantly quitting in frustration and you were constantly inheriting their work. You were expected to work unpaid overtime constantly to meet your "estimates". If your estimated was longer than they wanted it to be, they changed your estimates and told you to meet them anyway. They were always complaining about how hard it was to find and retain people.

We did it on 386 or 486 machines in DOS with no internet, though. So that was different.