I've worked in too many large codebases where no one can point to any _single file or class_ and label it "correct," ("the right way") yet management is amazed when the lack of a "North Star" means the codebase is full of overlapping, piecemeal patterns that are lucky to work together at all.
That's why the team needs someone with "taste" to dictate the idiomatic way to do it and why LLMs (when used this way) can raise the floor of quality and baseline of consistency.