It makes sense to have global defaults specific to your machine if and only if your workflow (editor, personal tooling) creates files that you don't want as a part of any project. Things like vim or emacs temp files, macOS's DS Store files, etc. This doesn't apply if your team uses standardized editor configs.
Tangentially you can set vims temp/swap files to something like ~/.vim/tmp/ so they don’t clutter repo directories. At least that’s my pref for this annoyance/clutter
