developer makes a "missed-a-semicolon"-kind of mistake that brings your non-production infrastructure down.

manager goes crazy. rallies the whole team into a meeting to find "whom to hold accountable for this stupid mistake" ( read : whom should I blame? ).

spend 1-hour to investigate the problem. send out another developer to fix the problem.

... continue digging ...
( with every step in the software development lifecycle handbook; the only step missing was to pull the handbook itself out )

finds that the developer followed the development process well ( no hoops jumped ).
the error was missed during the code review because the reviewer didn't actually "review" the code, but reported that they had "reviewed and merged" the code

get asked why we're all spending time trying to fix a problem that occurred in a non-production environment. apparently, now it is about figuring out the root cause so that it doesn't happen in production.

we're ALL now staring at the SAME pull request. now the manager is suddenly more mad because the developer used brackets to indicate the pseudo-path where the change occurred.
"WHY WOULD YOU WASTE 30-SECONDS PUTTING ALL THOSE BRACES? YOU'RE ALREADY ON A BRANCH!"

PS : the reason I didn't quote any of the manager's words until the end was because they were screaming all along, so, I'd have to type in ALL CAPS-case. I'm a CAPS-case-hater by-default ( except for the singular use of "I" ( eye; indicating myself ) )

WTF? I mean, walk your temper off first ( I don't mean literally, right now; for now, consider it a figure of speech. I wish I could ask you to do it literally; but no, I'm not that much of a sadist just yet ). Then come back and decide what you actually want to be pissed about. Then think more; about whether you want to kill everyone else's productivity by rallying the entire team ( OK, I'm exaggerating, it's a small team of 4 people; excluding the manager ) to look at an issue that happened in a non-production environment.
At the end of the week, you're still going to come back and say we're behind schedule because we didn't get any work done.
Well, here's 4 hours of our time consumed away by you.

This manager also has a habit of saying, "getting on X's case". Even if it is a discussion ( and not a debate ). What is that supposed to mean? Did X commit such a grave crime that they need to be condemned to hell?

I miss my old organization where there was a strict no-blame policy. Their strategy was, "OK, we have an issue, let's fix it and move on."
I've gotten involved ( not caused it ) in even bigger issues ( like an almost-data-breach ) and nobody ever pointed a finger at another person.
Even though we all knew who caused the issue. Some even went beyond and defended the person. Like, "Them. No, that's not possible. They won't do such dumb mistakes. They're very thorough with their work."
No one even talked about the person behind their back either ( at least I wasn't involved in any such conversation ). Even later, after the whole issue had settled down. I don't think people brought it up later either ( though it was kind of a hush-hush need-to-know event )

Now I realize the other unsaid-advantage of the no-blame policy. You don't lose 4 hours of your so-called "quarantine productivity". We're already short on productivity. Please don't add anymore. 🙏