I don't know. I don't know the sales between elden ring and horizon 2.
PlayStation users seems to primarily like exclusives over other games, so I don't doubt that it could sell better.
But elden ring is still both on pc, ps and Xbox.
I don't really give a fuck about metacritic.
And neither would you if it somehow didn't fit to your agenda.
In here we hate metacritic if it's against our agenda or love it if it backs our opinions up.
On Gaf there's more threads about Elden Ring than Horizon 2, and Gaf is mainly PlayStation players so I'd rather use that than some garbage metacritic where fanboys gives something 10 and haters gives it minus 10.