Google Pixel 8 / 8 Pro - Link / Unlink Contacts
Your Pixel 8 / 8 Pro lets you organize your contacts based on your preference by merging the details of multiple entries or separating them.
The Contacts app uses an intelligent merge feature to combine contact info from various sources (e.g., Gmail™, Facebook®, etc.). To correct contact info joined in error, you can edit, delete, or undo changes to contacts.