I've had some graphical issues sure, and a bad guy spawned inside a car once. That's in 80h so far in the game.
Everyone's experience is different, but don't say people don't pay attention. If they break the immersion for you, just stay away from the game for a while. It was the exact same situation with The Witcher 3, took a good 6 months for it to get good.
But they are still supporting that game after what, 5 years? I'm absolutely sure they will with this aswell.