A lot of buzz on twitter and blogs recently about peer-review/code-review and why it's hard, what it's for, whether it's bringing into a high trust, high cohesion team patterns that were designed for low trust distributed projects and more overhead than it's worth.
https://conventionalcomments.org/ interesting format that probably helps to control tone and make the feedback process smoother. It also make (blocking)/(non-blocking) standardized and pretty non-confrontational and that feels like a smooth set of conventions to adopt. Nick talked about it here https://www.iamdeveloper.com/pages/talks/#heading-words-matter:-conventional-comments