I interviewed for an SRE position at Auth0 years ago. My interviewer told me it was all held together by duct tape and prayers. I'm glad I didn't end up taking that position.
Sure, everyone ends up having a dim perspective on what they manage usually. But this was especially noticeable as he explained to me how many incidents they'd have daily, what their on-call was like, etc. In an world full of castles built with toothpicks and elmers glue this came off like it was built with wet cardboard and chewing gum.