My child’s MacBook Pro was full to the point of being unsalvageable, prompting me to use my expertise in troubleshooting Mac issues. It turned out that the massive Steam download had filled the startup volume storage so full that the operating system couldn’t delete files. Despite various attempts to free up space using methods like emptying the Trash and using Terminal, nothing worked. After trying multiple solutions, I eventually managed to restore the system by erasing the drive, reinstalling the OS, and migrating data from a Time Machine backup. The whole ordeal highlighted the challenges faced when dealing with complex Mac issues.
https://sixcolors.com/post/2024/03/a-disk-so-full-it-couldnt-be-restored/