Okay really new to me that code reviwers are not always running the code. I think it depends on the kind of project and ease of checking out the branch and just

Okay really new to me that code reviwers are not always running the code. I think it depends on the kind of project and ease of checking out the branch and just running it but I'd argue it always make sense to check it out. The main indicator of how easy a review is is for me simply the number of changed files and commits. We try to enforce smaller differences, even if it is not possible to make features that small. You can always merge it with feature flags into production. Also urging developers so self-review the code makes a HUGE difference already as well.