Hi - Previously before Cake integrated MWEB, I would send from an MWEB in my Litecoin core to Cake and would be able to spend the coins after one confirmation. This is also true with Stack Wallet.
Since the introduction of MWEB to cake it seems you guys are following the protocol standard to wait for 6 confirmations before coins can be spent. This is just a soft limit and not actually enforced unless going from ltc → MWEB or MWEB → MWEB but not enforcible going from MWEB → ltc as I have done it many times in the past and can still do it in stack.
Screenshot below
