Yes and no. It depends on the team and the culture. My favorite was when I worked in a team of only senior engineers we would leave comments like 's/this/that/g

Yes and no. It depends on the team and the culture. My favorite was when I worked in a team of only senior engineers we would leave comments like 's/this/that/g other than than LGTM'. This was all that was needed, no fluff. In other teams, a comment like this would have meant a chat with HR. We can't make rules for these things, because people and thus teams are different.