Cannot sync PERSONAL library from OS 10.15.7 to iPhone E 2022

Hello worldstage,

Welcome to Apple Support Communities!

If we understand your post correctly, you're unable to sync from your Mac to your iPhone. We're here to help!

You also stated in your post that you want to know how to sync your personal library to your iPhone SE 2022. The article below will provide the steps for syncing your phone with your Mac.

Use the Finder to sync your iPhone, iPad, or iPod with your computer

If you're having trouble syncing your device then follow the steps in this article: Find an iTunes or Finder error code

Let us know if you have any questions.

Thank you for using Apple Support Communities.

Take care!