Can’t Get My Old Samsung Galaxy S9 to Sync Contacts with Google Anymore

I’ve been using my Samsung Galaxy S9 as my backup phone for a couple of years now, mostly offline, but I recently decided to update it and get my contacts synced with Google again. The phone is running Android 10, and I double-checked that the Google account is active and syncing is turned on. However, no contacts are showing up on the phone after syncing. I also tried removing and re-adding the Google account, but that didn’t help.

The phone isn’t rooted or anything fancy, just stock Samsung software. I’m not seeing any error messages during sync, just that the contacts list stays empty. I want to use this device as a reliable backup, so having contacts synced is pretty important.

Has anyone else had trouble syncing contacts on an older Samsung with Android 10? What steps did you take to fix it? Should I try a factory reset, or is there a less drastic way to get Google Contacts syncing properly again?