Let´s talk about the Minecart with hopper.

As we saw it on today's snapshot (24w06a) the minecart with hopper no longer pick up items through the blocks, and I think that's a huge mistake, because it was one of it's main use, more specifically on early game for some basic redstone farms, and even on more advanced redstone circuits that require that mechanic. 

So, if the change isn't reversed, I think that the minecart with hopper will become the new minecart with furnace.