Hikaru is awesome to watch. He's headed to the candidates where I hope he takes it. It will be amazing for chess to see him compete for world championship.
Hikaru will get wiped by Carlson. Hikaru is a blitz/bullet player, not classical. They are different games.
I can personally attest to this but Hikaru has been unusually strong in classical in his return. Hence why he's headed to the candidates.
Also remember... Hikaru might just end up being champion. Carlsen said he'll only fight firouzja.