How to change the Apple i.d. account in System Preferences I used when setting up my new MacBook Pro?

You could set up another user account to use with the new ID.

Use the article below as a guide of where to sign out of the old ID and then sign in with the new ID. Make sure you turn off Find My Phone before signing out of the old ID. Once signed out and Find My Phone is off, then sign in with the new ID, then turn Find My Phone back on.

What to do after you change your Apple ID or password - Apple Support.  *