Just watched
https://www.youtube.com/watch?v=omyoJ7onNrg did they ever add anything (big) to the game, that was shown in this video?
As far as I know they mostly fixed stuff, like police spawns and stuff.
But the game is nowhere close to what was advertised before the launch, right?
Not really, although technically speaking you could say some of the promises were fulfilled, mainly those around the combat itself. IOW you do have a fair amount of freedom to deal with combat in many different ways (hack, stealth and avoid, slice and dice, bludgeon, shoot with any number of types of different-feeling guns). The trouble (from an RPG point of view) is that while, on the one hand, just in terms of usability, graphics, audio, etc., the combat is quite fun and moreish and has its own addictive quality, on the other hand, on 2nd and 3rd runs, you don't find yourself trying any drastically different "paths" or ways of doing things, or at least, the game doesn't particularly reward/punish you for trying to do so. You certainly can try different ways of doing things, and they are functional, but the variance is optional, LARP-ey.
For example, although there are a fair few skill checks and ImmSim aspects, it's mostly Potemkin ImmSim, and there's usually an "easy" and obvious way of doing things that doesn't require any skill checks. (This is less true in some of the more important quests, but it's generally true of the game as a whole.)
But I still think it's a fun game now that it's been tweaked enough to be playable for the most part, and it's especially more fun with the right mods. I honestly don't think it's much worse than TW3 now, just less finished, less refined, less polished, and a bit more janky here and there.
To put it another way, CDPR failed to fulfil the promise that they were going to do a serious foray into RPG land, like this "king of RPGs" type thing, and under pressure they reverted to doing what they know, which is making a Witcher-style narratively structured Action-RPG with some rough and ready open world/RPG aspects tacked on. But now that it pretty much works out of the box like that, as it should have at launch, it's not such a terrible sin.