If the Land Registry says you own the property, you can rest assured you own it.
Sounds to me like you can only rest assured at the moment the Land Registry tells you. After that, it’s only a matter of time before some scammer sells your house out from under you. Not a great system.
Could you use a very small mortgage as a proxy for that function? In my country a mortgage will prevent any transaction if the bank don't agree. This will add a non trivial step for the scammer.
Sounds to me like you can only rest assured at the moment the Land Registry tells you. After that, it’s only a matter of time before some scammer sells your house out from under you. Not a great system.