Ask HN: What is the ratio of gunk/glue/smelly code?

what is the ratio of gunk/glue/smelly code in your day job to compared to a similar size open source project.

Note: > if you work at FAAANG please ignore. > restrict your answer to maybe a percentage and some text adding some context not more than a few lines. > i understand that code quality can change based on many many factors none of which i am concerned about. this is just a poll/pulse.