I think with all them less popularity than Lionel Messi and Cristiano Ronaldo, I don't see have any young player like Mbappe and Haaland have popularity with their fans, but football keep running although Messi and Ronaldo have been retired.
LOL... You can't compare Messi and Ronaldo with players such as Cavani. Messi and Ronaldo are absolute legends. They are the best of the best. Suarez, Modric.etc had their small periods of fame, but they haven't managed to keep their form continuously. And we can say with 100% confidence that Messi and Ronaldo can single-handedly win matches for their teams. How many of the other players have this capability? Without support from the other players, how many of them can win matches for their teams?
Football is a team game, not an individual show. But the team desperately needs some top players, even though his level below Messi and Ronaldo can at least make a difference in the game. Ronaldo and Messi are legends that will never be forgotten in football, after Ronaldo and Messi are no longer (retired) other players will appear. The Qatar World Cup became their last competition in the most prestigious football stage, after that they were no longer possible to appear in this quadrennial event because of their age.