What git config settings should be defaults by now? Here are some settings that even the core developers change.

How to use different git identities for different projects

EditorConfig helps maintain consistent coding styles for multiple developers working on the same project across various editors and IDEs. The EditorConfig project consists of a file format for defining coding styles and a collection of text editor plugins that enable editors to read the file format and adhere to defined styles. EditorConfig files are easily readable and they work nicely with version control systems.

Using a single init.lua or vimrc configuration file for (Neo)Vim file is better than a multi folder/file layout approach.