Innovative as in new or advanced? The quick save feature is new, and the auto save feature tracking numerous past saves is leagues above what I've seen in the Witcher 3 for example, where up to 40-60 minutes of gameplay can be lost when a bug is experienced. The Witcher 3's saving isn't even bad either, which really drives home why Bethesda's saving features are effective.
There's been one patch by the way, at least on Xbox, considering the player testers increased by a factor of many many times at launch the chances for new bugs to be discovered is not only higher, but almost a certainty.
I'm aware my experience is anecdotal, which is why I said it was, though from what reviews I've seen Fallout 4 is still immensely unbuggy for an RPG of its scope, as I've explained. Need I post the hilarious Witcher 3 launch bugs to drive home this point? I don't really feel the need.
GTA V is pretty much the definition of a surreal universe, the entire thing is a satire of modern day life. It's not trying to be dead or lifeless, it's the exact opposite, I'm not really sure how you're comparing the setting of Fallout 4 to GTA, but you are, so congratulations, very 'hilarious'.
I've never actually claimed Fallout 4 was a huge departure from Fallout 3, I could list a number of changes if I wanted to, but all I wanted to do was point out that knocking Fallout 4 for bugs in comparison to Witcher 3 was probably the worst possible comparison to make. Though I'm not a Witcher player, the reviews suggest you had much easier material to run with, though once again I would argue Fallout loses out because it's a more niche environment.
Anyway, I don't want a heated debate in a gaming discussion thread, though after having professed to playing Fallout 4 a lot recently having someone immediately jump in with the depreciating and in my mind erroneous and misleading assertion that it is buggy and boring I couldn't help but rebut. For nothing else, I wouldn't want fans waiting for it for Christmas becoming dissapointed from unfair criticisms, when better ones exist.