Bethesda is well-known for releasing games with tons of bugs. But there is a way for the community to deal with this. Nearly every owner of Fallout 3 downloaded the Unofficial Fallout 3 Patch - the most popular patch of them all, and Mission Mojave - a similar type of patch for New Vegas. Both patches fixed hundreds of bugs in both games.
Fallout 4 will most likely have issues of its own. That’s not a fact yet, but expect tons of complaints in the upcoming months from PC users. This is where the modding community will enter the scene.