You can get two wither eyes per wither: [src/main/resources/data/endrem/loot_tables/minecraft/entities/wither.json ](https://github.com/Team-Remastered/End-Remastered-Forge/blob/1.20.X/src/main/resources/data/endrem/loot_tables/minecraft/entities/wither.json) forge 1.20.1
You can get two wither eyes per wither:
src/main/resources/data/endrem/loot_tables/minecraft/entities/wither.json
forge 1.20.1