That's his job as a striker and it's quite strange when he can't score goals in several consecutive matches because a striker can't stop scoring goals if he wants to be the best player. Mbappe has provided a lot of color for Luis Enrique's team and perhaps luck has not been there so he has had so much difficulty bringing PSG to become one of the favorite teams in the Champions League. Now his future is starting to be discussed and everyone hopes he will go to a club that can make his wishes come true and Real Madrid is the team most linked to him.
I think carrying a team alone is quite difficult. Mbappe is the best player in the world. But if he doesn't get proper teammates I think he will struggle to develop. I think Mbappe is not like Ronaldo who has the spirit of a leader so he is able to carry his teammates and even brought Portugal to win the EURO cup. Mbappe is a developing striker and he needs support from his teammates therefore I think choosing to play at another club like Real Madrid is the best choice for him for now.
I agree with you that carrying a team alone is certainly a very difficult task and it is not a task alone but also a joint task and having teammates who support each other, this cannot be separated from the tactics used by a coach if the coach can build performance team as a whole then PSG can perform better in the UCL.
Ronaldo had the spirit of a leader when he was young, but Ronaldo has teammates who can work together so that he achieves success. If Mbappè wants the UCL title, of course he has to join forces with supportive colleagues so that he doesn't carry the burden alone.