Lol my workplace ships Angular in debug mode. Don't worry though, the whole page kills itself if a dubious third-party library detects the console is open. Very secure and not brittle at all! Please send help
I've seen some that activate an insane number of breakpoints, so that the page freezes when the dev tools open. Although Firefox let's you disable breaking on breakpoints all together, so it only really stops those that don't know what they're doing.
You can imagine how many node projects there are running in production with npm run. I have encountered js/ts/node devs that don't even know that you should like, build your project, with npm build and then ship and serve the bundle.