Playing all the mods 10.

MC version 1.21.1
Mod version 12.0.5

Using golden hook seems to disable any boosts from other sources. Using an ancient knowledge potion that boosts XP by 400% per potion level will no longer give any boost after equipping the gold hook.
1 swipe on my enderman farm usually gives 30+ levels with the knowledge potion. With the hook, I barely get 4 levels.

On a side note, the XP boost is not recognized by the mod apothic attributes, despite it saying I should have an extra 500% XP gain, I still get normal XP levels with gold hook.

Realized Artifacts and Relics are not the same. My bad! I had this git open previously and wasnt looking that item the mod was from. Posting on the correct mod github.
Cheers,