tl;dr:
Interesting sci-fi setting, kind of like Deus Ex, but much worse (not bad, but far from DE quality)
Watch Dogs-like driving (generally bad, much worse than GTA) with extremely scripted and dead city except quest locations
inventory is terrible
hacking is mediocre
Combat is Borderlands-like with all its drawbacks (I criticized this kind of combat in The Outer Worlds quickie)
Melee is also rather meh
UI is Witcher 3-like
Quite cool memory-reading of NPC gameplay and quests (which feels often like adventure games)
Story and quests seem very interesting
Therefore, seems like Witchers - great story and quests, but gameplay is weak. The guy says it's mostly like science-fiction Witcher 2 (not 3, not 1, it's a game that tries hard to be western AAA title, but falls short).
Sorry but you got it wrong. I rewatched this video again and here is what he said (you can watch with subtitles):
1. He says Cyberpunk is more grounded Sci-Fi with lots of details to help immerse you in the created world. He does not say at any point it is worse than Deus Ex.
2. He says it's closer to Watch Dogs than GTA - lacks sense of speed, Jackie's sports car is able to come from max speed to full stop almost instantly, some objects barely slow down the car if rammed into while others completely stop it (like in GTA). He said the driving is basically OK but lacks polishing to be considered satisfying. Also the traffic and NPC spawn rate is tied to places players will frequently visit - Lizzy's, Ripperdocs, V's apartment and further from them the traffic gets less congested which contradicts with Night City being the biggest and the most busy town in USA.
3. UI is cluttered and makes you feel you are missing all the info the game tries to provide you (from my experience it is the same issue like in Doom Eternal which CAN be mitigated once you spend more time with the game). Equipment UI is chaotic because all items are not sorted by default and the game could use better sorting filters + split to different categories (like in Witcher 3). He says it is a step back compared to Witcher. Also looting is quite similar to Diablo - it is tedious until you learn to identify from all the names what items are good and which are insta-sell junk. He does not say the UI is like in Witcher 3 + you can watch released videos and compare it for your own.
4. Says hacking is non-intuitive and Watch Dogs did it better. Honestly I don't know if he meant the minigame or quick-hacks. He isn't pointing out what makes hacking "just alright" like he said. Maybe it's the controls? Watch Dogs 2 improved hacking by showing you 1 default option and 3 more if you targeted an enemy and pressed a button to enter hacking-contextual menu.
5. Combat is Borderlands-esque because of bullet-sponge. If you shoot someone in the head you deal crit damage but he won't die from single bullet. He doesn't comment on anything else but said shooting feels quite good. Also he said that if an enemy is many levels above you then you will have same thing like Geralt chipping health from Griffin for 30 minutes while avoiding one-shot attacks.
6. He says melee combat is stiff and it works like in Witcher 3 - fast, heavy attacks, block, dodge, counter when timed block. That's it, nothing more than telling how this game will have it's own brawl-fights quests like Witcher had.
7. Like I said he does not say the UI is witcher-like. Only that you have different menus (abilities, equipment, quest journal, map) divided like in Witcher 3 (or GTA or Watch Dogs or any other game). He said that summoning your car works like whistling to summon Roach or that the game has same travel system. He just points out CDPR copied some gameplay elements from Witcher 3 - and based on what he said elements which - in my opinion - were working in Witcher 3 and didn't need improvements.
8. He says Braindance reminds him of Batman: Arkham games detective riddles, how it is turned to 11 and will serve as good break from normal gameplay. He said we get mobile version to view BDs outside Lizzy's. On the other hand I have seen others saying BD is quite slow. boring and (especially on Reddit) not many people have the same optimism for it.
9. Story and quests are indeed interesting. He says developers tried to avoid fedexing and even when you have to collect 10 Mcguffins or bring some stuff somewhere it will have a story and provide you a reason to do it. In my opinion they probably got rid of treasure hunts from Witcher 3 which only had story-exposition in letters and very little gameplay. But I might be wrong and it is just marketing on their part.
So no, the game is nowhere in the material compared to Witcher 2. It is to GTA V and in that video it is said CDPR lacks the experience and driving, shooting and all similar elements which you can find in GTA are close but below Rockstar-level.
