neither euro 2004 wasn't
They would have investigated if it was such a fix. The paranoia is boring, lets see Italy their football plagued with match fixing and controversies, plus Croatian league not the national team has some very suspect results. Doesn't mean every country is at it.
1982 Germany-Austria World Cup
Spain-Malta where they needed to win by 11 goals to make it through to the Euros.
Those are examples of clear manipulation of results luckily betting wasn't around then. Rules were changed after the German nonsense.
Conspiracy theories that's all about that, considering Danes and Swedes are happy when the other loses unless it's against Germany.