Not being sarcastic in the slightest. What is going to be remembered more mbappe helping PSG win their first CL or him helping madrid win number 14/15 CL ?
Who other than madrid fans, who cares if Madrid win a CL. Its just boring. I'd much rather see history being made by clubs winning CL for the first time. Thats where the stories and legends are created. The unexpected triumphs. The notts forest, aston villas, porto, celtic, hamburger, steau buacrest, psv, red star etc.
Also those who retained the trophy unexpectedly, Ajax, Forest etc.
For argument sake say Mbappe signs an extension and wins tye next two CL back to back with PSG before leaving for Madrid. No matter what he does at Madrid, it will not overshadow winning 2 x CL with PSG.
Haaland winning a CL with City will be more remembered than him winning one with madrid. Thats a compliment to madrid as them winning the trophy is so utterly tedious now.
As for not caring about PSG, dont be so myopic. You might as well ask for a closed european super league and bore everyone to death with the same boring winners over and over again.