But the filters are there - between the search bar and the vault items:
As written in my previous post: if you could drag items to one of the four filters – and the respective filter would expand automatically (including auto-scroll by going up or down) – the design/UI would allow a drag & drop functionality, IMHO.
(but as also written before, I have no idea, if it would be technically possible - or how much code rewriting would be necessary to even meet the preconditions for making this possible)