Yeah, no. The driver's API isn't a magic wand and you do not even technically worry with that. Direct X, Vulcan and OpenGL typically take care of that for you. You still have to do resource management, including video memory management and CPU, Ram etc and have to account for not only size but processing power to manage you game specs to a playable level on a target range of PCs.
Now, your development effort can be cut shorter if you use a game engine like Unreal that is developed and tested over a long time for PC and used in multiple cases. But a port such as HZD uses it's own engine, developed for PS4, that has to be ported too.
Now the amount that you can test and correct before can be bigger or smaller depending on how big of a pool your testers are, that's why some companies opt for beta testing with the consumer directly, but that's a pre-release cost that not all companies are able to afford, or in case of HZD, even if they could with the might of Sony, could they really attract people to beta test an already released game? And even if the answer is yes to all of this, they'd still have to balance if that cost would justify not just releasing the game and patch it in the following days. Given it is an established game, and whatever bugs and problems weren't big and therefore big problems weren't predicted, I believe no.
But yeah, without an attractive open beta when your name reaches the market it will be exposed to a universe of settings that will eventually reveal stuff you could not detect on a lab environment.