Italy played very slowly and gave the impression of being boring, they also had difficulty creating opportunities which resulted in defeat by Switzerland. This result is not surprising because Italy played very badly in the group stage, communication between players was not well established which led to several fatal mistakes. Switzerland managed to dominate the match well, they did not leave the slightest gap for Italy to develop their game.
Italy played worse than three matches in their group from intensity to motivation and how they attack, create opportunities. In this match with Switzerland, Italy did not show any signal that they want to win it. After a first conceded goal, then a second one, they played in a same way that is unacceptable with a big team like this. They can lose a match, lose a battle and fail to defend their trophy but losing like this is terrible.
And as for the German team, a big congratulations to them for making it to the next round, no doubt that they are one of the favourite to win this competition, but they really need to improve in the final third, because they can't afford being wasteful in front of goal against one of the top contenders in this competition, if not, they would pay for it dearly, they can't be putting too much pressure on Musiala, and be expecting him to make a difference every time, because he is just a 21 year old.
Germany shown good strength in first three matches and they shown it in a round of 16 match with Denmark too. They got luckiness and support from VAR, referee but their quality is good, performance is well too and in general, they deserve to win than Denmark. There are controversial moments in the match and Denmark can feel that they deserve to equalize the result. But with good performance from Germany, I believe they will be able to find another goal and beat Denmark eventually.