As Gonzo says, attempts to harmonize what 'LVP in force' actually means have largely failed. And in reality, the whole topic is one of the least standardized parts of airport operations around the world. The measures put in place to safeguard operations - and what is actually protected - in poor visibility vary hugely and assumptions galore can often get made based on what someone saw at one airport.
And there is rather a lot riding on those assumptions!
And don't forget departures and ground operations. I personally rather like LVP that safeguard these parts of the operation also.....but if you just assume that it is the case, you might be surprised at the reality!