PSG so far still rely on Mbappe to scores goals even i have to says PSG can't do anything without him and this summer Enrique has been attempts to buy some players to strengthen PSG squad and they have Randal Kolo Muani or Marco Asensio but so far none of them can able to performing well and since Mbappe was played again there was a significant progress for PSG performance because they can able to performing well again so this proven Mbappe is very important player for PSG
PSG was into hell group in this competition and with their situations indeed some people doubt to them because their opponents such as AC Milan, Dortmund and Newcastle cannot be underestimate but PSG has good records from Dortmund because previously they can able to beat this team several times and all teams indeed had equal chances to qualified but i think PSG is slightly the favourite moreover if i am not mistaken although PSG was often to changing the manager but since 2013 they always be qualified to knockout stage
I think almost any team would have a certain reliance on Mbappe to score goals. Ultimately, this is his main job and the game often is about creating chances or space for him so that he can get close to the goal and seek the finish.
But when you mean there is too much reliance on Mbappe, that was also not very surprising although I think that Asensio is making a significant contribution to the PSG game as well.