I was just seeing the custom worlds in datapacks and I found a setting called aquifer=true, so then I set it to false and now all the noise caves in my custom world are flooded with water

https://drive.google.com/file/d/1bNyPYPbpvhzjcwrMTVd-AoKSq065p0jO/view?usp=sharing

(This is the link to the video, I was unable to upload the video as it was exceeding the file limit)

And if you want the datapack, there here is that Caves.rar