Ronaldo is a class apart. He can't be compared with anyone else. Players such as Diogo Jota, Rafael Leão and André Silva are very talented, but none of them can replace Ronaldo if he is not there in the squad. Take out Ronaldo from the Portugal team, and I am sure that they will struggle to remain in the top-15 ranking. Players like Ronaldo makes life easier for the other players in his team. Because the opponents will be completely focused on him, and using this opportunity the other players can make attacking moves.
No doubt about how talented with Cristiano Ronaldo but I am not believing Portugal will reach potential result on 2022 FIFA World Cup in Qatar, usually not only on club but also on national country should focus and try give chance for Cristiano Ronaldo scoring goals. I think that the problem faced if Portugal keep try to make Ronaldo as regular and important player, less contribution from other player like Diogo Jota, Rafael Leão and André Silva until Bernando Silva can show their best performance and skill with Portugal national country. I think football is unity team and not as individual skill and who ever got bigger chance for scoring goal should give them chance.