I wish this had been my experience. I pushed for so long in my last company for standards to be written, code formatters implemented and objectivity to be brought to reviews but it was always ignored.
Instead I had to endure every employee who claimed seniority (in a non hierarchical company) subjecting their opinion on style in reviews. It came up the point that I dreaded having to work with specific people because they kept triggering my PTSD with their moving target of micro management.
Only afterwards did I truly appreciate how poor a lot of their opinions were. Now one of my first questions when approaching a new project is what standards we’re following. If they look at me blank faced that’s a pretty solid red flag.
My mantra has always been to bring solutions not problems. Applying that to code reviews makes for a far more productive experience.
Rather than just pointing out errors in code help the developer with prompts towards the solution.
Or, if you’re too lazy to explain why something shouldn’t be done then why should another developer have to act on your criticism?