I'm a lead developer. And often I hear from my architect when I missed stuff in some PR that I just checked.

I worked in a lot of different software companies over the last 35 years. And this company has by far the highest standards. It's sometimes really annoying when you maybe coded 8 hours for a use case, just to spend 10-12 additional hours just for the test cases and may some 1-2 additional hours because the QA or the PO found something that needs to be changed. But in the end we can be proud of what we coded.