The recent update to macOS 15.2 has broken the functionality of copying the macOS system to another drive. Users are now required to use alternative methods, like "Backup - all files" with a "Smart Update", to copy everything but the OS. This change has led to significant difficulties for users trying to restore systems from Time Machine backups, especially when backup sizes exceed available SSD capacity. Additionally, there are complaints about increased restrictions on running untrusted software, leading some users to contemplate switching away from macOS altogether.