Correct me if I'm wrong, but I think only in groupstage we uses the 90 minute result in this tournament since there is no extra time or penalty shootout in groupstage. From the Round of 32 to the final, if a match is tied after regular time, it goes to extra time and if still draw in overtime then oc it go penalty shootout. So I believe the final score should be the result after extra time, not just after 90 minutes + stoppage time.
Of course you're wrong. Look at all the results in this tournament, only regulation time has always been counted.
If you look at any bookmaker's rules, the match score is always counted only in regulation time. And actually, in this tournament, it's always been counted as in the group stage, it's clear there's no extra time, and like in the playoffs, only regulation time has always been counted. The England-Norway match was also counted as a 1-1 draw in regulation time, and this is correct.
But at the end of the tournament, for some reason, count the results including extra time. But I think that's just someone's mistake, which shouldn't be hard to fix.