For context, a while back, I started adding a lever to the bottom hopper of a mass smelter.
That way, if I smelt a bunch of things, and then pull the lever so there’s a little bit left in the furnace, I can pull it for the entire value of what I just smelted.
Does that still work, or do hoppers remove XP value from smelted items completely now?
No this behaviour still works in the most recent versions of minecraft