Offering my own experience for science, I have had two bugs within many hours of joyful, smooth play.
One was a character levitating for a split second, pre-patch.
The other was a bunch of cars weirdly inserted into each other in a line on the rear ends. It’s not as sexy as it sounds.
Two things, one pre-patch, that did not affect my gameplay at all in 10 hours probably? If that’s a buggy game, especially for an open world, we got it good.
These are modern times, inserting on the rear end isn't unusual!
Seriously though, I had 2 bugs in the first few hours but none since then!