I’d be curious to see a survey of how different companies do code review or it’s equivalent. I’d like something about the motivations they had for setting up th

I’d be curious to see a survey of how different companies do code review or it’s equivalent. I’d like something about the motivations they had for setting up the systems in certain ways and how they changed them over time. At my employer, code review was once done periodically as a big Herculean effort at each “release” (development stopped for code review) involving printing out the code/diffs on physical paper to read it and a senior person reading basically all the critical code. Over time the system became more automated and digital, and the requirements for review were also reduced. But I have no idea how that compares to other places apart from the first thing sounding very silly.