What happened?

Fireflies break with almost any shader

BetterNether

7.1.0

BCLib

2.1.0

Fabric API

0.58.0

Fabric Loader

0.14.9

Minecraft

1.19

Relevant log output

n/a

Other Mods

iris / optifine

Shader issues are shader issues, they are not related to the mod. Use mod-friendly shaders like Complementary