Itunes for macOS Catalina?

iTunes was split into various parts, and into other apps. For this task, use Finder.

What happened to iTunes? - Apple Support

Bypassing Activation Lock with iTunes (or with Finder) isn’t available. That Apple ID holding the lock, or sufficient proof of ownership, is required to release Activation Lock.

In addition to Activation Lock, there are various other locks that can be unlocked: How to Unlock an iPad or iPhone? - Apple Community

Apple split iTunes up in Catalina. Restoring iPhones is done in the Finder.

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The latest version of MacOS to support iTunes was MacOS Mojave, released by Apple in 2018. Since then, Finder is used to communicate to iOS devices on Macs.

If you forgot your iPhone passcode - Apple Support