I agree that the complaints are at a fever pitch, and I'm certainly enjoying the game, but I balk to compare it to GTA, which I believe is simply in another league of immersion.
This may be because I'm not very far into the main quest (without spoiling, I have about 3 hours ago gotten past the prologue and interlude).
But just off the top of my head, stark differences between gta and Cyberpunk:
Vehicle types. Gta has cars, motorcycles, helicopters, planes, blimps, atvs, and iirc bicycles. Cyberpunk has cars. I've seen motorcycles but I haven't seen that I can ride them yet. I've seen flying car type things too but again no evidence I can drive them. Same for blimps.
Gta lets me enter buildings and do things like bowl, play darts, pool, whatever. Get a drink at a bar, iirc. Strip clubs. Again, not too far at the game, but I tried going to a bar in Cyberpunk and it was like buying a drink in skyrim. It simply appeared in my inventory and that's that. I visited a hooker and he fucked me and that was kinda fun I guess, but not as interactive as a gta strip club.
Cops. I've seen a funny video in Cyberpunk where someone sniped someone from a roof and cops teleported behind him (nothing personel, kid). In GTA the cops have to actually arrive in some form of transportation to respond to your crimes.
So those are my main complaints, but only because we're comparing to gta here. On its own I actually enjoy Cyberpunk more than gta, but I do so fully cognizant of its flaws. I still have fun though.