Often times, when there is multiple ways something can be done or played, you’ll find “house rules”.
If common sense was common, would we ever need house rules? Would the rules become “common rules”?
Obviously, “common rules” aren’t listed everywhere, and house rules need to be documented or shared for someone to know them. This leads to conundrum for the most important work to be done in that the way to do it is mostly uncommunicated.
A way to add value: document things, set standards, and communicate the rules to get things done correctly.
The bigger question then becomes, how do you find that documentation?