Remember that UK results are pretty much always off from other regions, because we've moved to digital pretty substantially over here. A huge chunk of people who buy new releases at launch do it digitally, because quite often the prices are the same as in physical stores. The biggest example in these numbers is Fallout 76, which as an online game has an even greater incentive to purchase digital first.
So, I reckon these numbers significantly under estimate the total sales here in the UK for pretty much all titles.