I'm using the Fabric version for Minecraft 1.17.1. Ever since I added Better End I have been getting mud holes in the End. I felt while odd it wasn't a bad addition so I let it go but if there was a way to turn it off I'd probably do so. Then I added Terralith and the overworld mud holes stopped generating even in Vanilla biomes while the ones in the End are still generating even in modded biomes. I have added other structure generating mods that play nicely with Terralith but my Muddy Pigs are sad.