The one that I've always found odd is everything deciding to dump itself in the user profile directory (this is even something that stuff like VS Code does).
XDG_CONFIG_HOME (|| ~/.config) and friends has been a standard for a long time now on *nix (including macOS) and AppData (née Application Data) has been the standard on Windows for over 20 years at this point.
XDG_CONFIG_HOME (|| ~/.config) and friends has been a standard for a long time now on *nix (including macOS) and AppData (née Application Data) has been the standard on Windows for over 20 years at this point.