My boss is a designer and does the same. He has come into a mature product's codebase, the only project the company has, he called me about 6 months ago and started boasting with a screenshare showing me how he had 5 terminals open and smashing through ideas straight into production.
Now the system is failing, he thinks I am going to go in and fix all of his problems. Told him straight what I told him 6 months ago, he owns it, so get it fixed.
Not sure what happens to myself or the company by the end of the year.
Needs to be more stories about these people injecting AI Hopium and destroying their product, there isn't enough of them.