This article describes three ways to find and show the default hidden Library folder in macOS Big Sur (11) through OS X 10.7 (Lion).
How to Show the ~/Library Folder in MacOS
Apple hides the Library folder by setting a file system flag associated with the folder. You can turn the visibility flag on or off for any folder on your Mac. Apple has chosen to set the Library folder visibility flag to off by default. Here's how to change it.
Launch Terminal, located in /Applications/Utilities.
Enter chflags nohidden ~Library at the Terminal prompt:
