Yeah this is a fact about Mbappe. It looks like he really wants to win the Champions League title with PSG as well. Actually they had another chance to go for it this season but they failed really hard. They have been eliminated so early I mean. Their opponent was Bayern Munich of course which was another big title contender. But still PSG should have performed much better against them.
I think Mbappe's decision might depend on whether their current manager is changed or not. I also don't think Galtier is the right manager for this team. If they bring a manager like Zidane for example then Mbappe would definitely like to stay for a long time.
Dreams are just dreams because I'm still not sure whether it's from the start of this season or even next season because PSG's condition is still the same even though it's filled with lots of players who have big names but they don't have the criteria to win the Champions League. 2 This season even looks bad because they always get knocked out in the round of 16 which makes their big players look like nothing in the Champions League.