Sculk can spread in ancient city structures and replace soul sand with fire on top, extinguishing fires

I can confirm this behavior. It's important to note that this can be seen with the generation of fire throughout any ancient city structure and not just ancient city centers. Here's an example of this.

You can use the information provided below in order to reproduce this.

Version: 22w16b

Seed: -8293023318455179974
Coordinates: /execute in minecraft:overworld run tp @s 37764.11 -42.09 -635.60 -126.36 13.37

Summary has been updated with this information.