Is city spacing here a bug?

[Matt3721]

 

[Matt3721]

(only 2 spaces between my city and city state)

 

[Browd]

In Civ V, you could do this -- cities on different land masses only had to be 3 tiles apart (ring 1 of each city had to be exclusive to that city). Hadn't seen it yet in Civ VI, but perhaps that rule carried over.

Thread title changed to be more descriptive.