Does the current holder of ballon d'Or Rodri, the Spanish and Manchester City midfielder got it from winning the champions League title? I don't know but asking.
Back to the topic, from onset, champions league and world cup winner has been the eligible player to be awarded the Ballon d'Or, so it's should no different till this day.
I saw in the article if it should be given to lamine yamal or Dembele, from my explanation above, the award fits to be given to Dembele because he won the champions league title and have also won world cup also if I'm not mistaken.
After winning 20 caps and scoring five goals at youth level, Dembélé made his senior international debut for France in 2016. He was a member of the France squad that won the 2018 FIFA World Cup
Just checked it out.