Mostly true but it depends where you're looking. Football fans on twitter would have you believe he scored a maradona vs england-esque goal each game. A lot of football fans in england also say he carried them to it. Really isn't just some barca narrative.
He didnt score a Maradona-esque goal, no, great header against Wales though, but moving on.
I haven`t seen many saying he carried Portugal, though some of his fanboys use that national trophy as a stick to beat Messi with, but dont listen to those people.
It is natural though, that when things goes right, the big star gets favorable coverage, it happens with everyone, not just Ronaldo.
Another story is Modric, and i do love him, he was made out to be the saviour of Croatia in the last World Cup, when in fact, it was very much a team effort, just like with Portugal in 16.