Summary:
Ancient Cities generate commonly in the Deep Dark Biome. This causes no reward when finding an Ancient City.

Steps to Reproduce:

Step 1: Locate an Ancient City using the command: /locate ancientcity
Step 2: Using Spectator Mode is the easiest way to observe this bug. Use Spectator Mode while flying around near the outsides of the Ancient City.

Observed Results:
Ancient Cities generate too closely near each other.

Expected Result:
Ancient Cities should be more rare.

Other Information:

• Minecraft Preview 1.19.0.29
• Because of the Ancient City structure generating too close together, this causes the rarity of the structure to decrease.
• The increased rarity of the structure will give the player a more rewarding feeling.