How to back up phone to laptop

To back up iPhone using a Mac - How to back up your iPhone with your Mac - Apple Support

1. Connect iPhone and your computer with a cable.
2. In the Finder sidebar on your Mac, select your iPhone.
3. To use the Finder to back up iPhone, macOS 10.15 or later is required. With earlier versions of macOS, use iTunes to back up iPhone.
4. At the top of the Finder window, click General.
5. Select “Back up all of the data on your iPhone to this Mac.”
6. To encrypt your backup data and protect it with a password, select “Encrypt local backup.”
7. Click Back Up Now.

To back up iPhone using iTunes on a PC - How to back up your iPhone with iTunes on your PC - Apple Support

1. Connect iPhone and your computer with a cable.
2. In the iTunes app on your PC, click the iPhone button near the top left of the iTunes window.
3. Click Summary.
4. Click Back Up Now (below Backups).
5. To encrypt your backups, select “Encrypt local backup,” type a password, then click Set Password.

To see the backups stored on your computer, choose Edit > Preferences, then click Devices. Encrypted backups have a lock icon in the list of backups.

To back up iPhone using a Mac - How to back up your iPhone with your Mac - Apple Support

1. Connect iPhone and your computer with a cable.
2. In the Finder sidebar on your Mac, select your iPhone.
3. To use the Finder to back up iPhone, macOS 10.15 or later is required. With earlier versions of macOS, use iTunes to back up iPhone.

BUT I DO NOT GET THE iPhone in the Finder Sidebar.

Bob Timmons has done his best but the problem is the iPhone does not show up in Finder

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How to back up your iPhone, iPad, and iPod touch - Apple Support