Every block created for Litecoin has an extension block attached to it.
That extension block enables for specific public addresses that start with "ltcmweb1..." to hide their totals within those addresses, and hide the transaction amounts between those special types of addresses.
It is completely optional, and a person can send and receive from normal Litecoin addresses seamlessly. It helps Litecoins to become more fungible, which is how money absolutely should be.
It is literally the best of both worlds. These two worlds exist on wallets like
@nexuswallet @cakewallet @stack_wallet and Litecoin Core when running a node.
If you want to see mweb addresses available on your favorite wallets, write to them. The best way to get things added is to demand it or go to something else that does. You have more influence than you realize.
Take full control of your money.