Like the title said, the fog in mods such as Better Nether and Better end which generate custom terrain and biomes is still there even after disabling all fog in the No Fog configs. Please see the attached screenshots for reference.
Game version 1.18.1 (Fabric), using the latest version of the No Fog mod.

(Better End 1.18.1)

(Better Nether 1.18.1)

For reference: paulevsGitch/BCLib#74

You can fix this by turning off custom fog in the config. (That worked for LOD's disable fog feature anyway)

Resolved on BCLib's end with their fog config as previously mentioned above.