TFA touches on this, but one thing I initially found surprising is how few people understand different domains have different best practices around authorship order. It does make sense, people are typically not as involved in other domains and not exposed to those papers. But I do still find it surprising how different the practices can be overall.
The American Mathematical Society has a statement basically saying “in math, authorship order is alphabetical” that people going up for tenure can put in their files, in case people involved in the decision come from other disciplines which have other conventions. https://www.ams.org/learning-careers/leaders/CultureStatemen...
I’m in physics, we have this thing where the first author did the most and the last author supervised the most, and the person in the middle just had an occasional coffee with them.