If there isn't enough space for an update on your device, try this.| Apple Support
If you’re looking to get rid of all the data on a Mac hard drive or SSD, you need to wipe it fully. Learn some safe and effective methods for wiping data.| Backblaze Blog | Cloud Storage & Cloud Backup
Use Software Update to install updates and upgrades for macOS and its built-in apps.| Apple Support
Starting with macOS Sonoma, you can use Safari to save any webpage as a web app, so that you can use it independently of Safari. Web apps offer a streamlined, app-like experience and easy access from the Dock.| Apple Support