GT7 competes with Forza Motorsport, not Horizon. Motorsport is due for a new release this year, let’s see how that compares.

Sony has no answer to Forza Horizon—open world arcade racer.

They don't really need it. There's 3rd party options like Need for Speed.

There's lots of first party titles MS has no one to one answer for either. They don't have a big mascot 3rd person shooter platform game like Ratchet and Clank Rift Apart.