, you might have noticed a glaring omission in your Applications folder: iTunes is gone
If you specifically need the old iTunes interface for compatibility with older software or personal preference, some users use the third-party tool Retroactive macOS Big Sur - App Store itunes macos big sur 117
Go to Software Update in System Preferences to find macOS Big Sur. Click Upgrade Now and follow the onscreen instructions. Upgrade to macOS Big Sur - Apple , you might have noticed a glaring omission