The DoD software I was familiar with wasn’t that bad.
Having said that, the Navy depot level rework facility I was at didn’t take up a digital aircraft processing document platform until just a few years ago......I’m sure that’s been commonplace in the private sector for years.
https://www.iment.com/maida/computer/redref/index.htm
OVERVIEW OF THE ADA LANGUAGE COMPETITION
All I heard in the day were horror stories.
I wrote the manual for the Navy language SPL/I, Signal Processing Language I. That was the late 70’s when government overseerers showed up with bare chests to their waist and gold chains, bragging about their employment level. That’s how I got into language design. I’d be told of one language change and be able to make all the parallel changes to keep the language consistent. Didn’t realize I knew the language, just knew I knew my book cold. Fun days. Was also on the program committee for History of Programming Languages run by Jean Sammet. She was another big Star Trek fan.