1) Contacts are only on Apple/iCould...no Google connection.
2) "Contacts" is selected in Saved to iCloud. I guess the concern is I accidentally deleted that Group/List, can I recover that somehow?
3) I am not seeing the "Neighborhood" list in the Contacts app. There are 6 other groups, which I assume are all the other ones but I haven't memorized the list! :) I looked in the 'All Contacts' list in the app and the name I was looking for is not their either. So it appears when a Group disappears, it deletes all the contacts in that group. However, I created a new group, put in a contact and then tried to delete the group, but that isn't an option so it doesn't seem like a mistake on my part.
4) I'm logged into two Macs, my iPhone and my iPad. Issue exists on all devices.
5) There is no Account Settings > Advanced > Restore Contacts that I can find in the Contacts app or at the System level. Running ver.
Restarting my iPhone had no effect.
I looked in iCloud/Saved to iCloud and Contacts is turned on.
All my devices are at the latest version.
I will contact support if needed.
I will say that I cant be sure I had a Neighborhood list, but I looked for a contact entry for several neighbors, and they aren't found.