No it's not. As with TW3 you play a character not yourself.
even if it might be hard to play exactly like a PnP RPG (because it's 90% dialogues and yes, in that case the story actually changes and GMs have to imrpovise all the time and very often trash everything they planned) I still feel other games captured the essence of RPG in a much better way, much closer to PnP.
I actually feel that CP77 has nothing to do with PnP RPGs at all. If it wasn't called Cyberpunk we might not even have this conversation.
Not really, no.
Maybe I am wrong and if so please correct me, but I've suspected for awhile that even my beloved JRPG's are called as such because they are the Japanese take on RPG's, not simply because they are RPG's that happen to be from Japan. By the standard of PnP RPG's which CP2077 was supposedly based on, even games I call my favorite RPG's of all time wouldn't be considered RPG's such as FFVII and Xenogears etc. Would you say that is accurate?
From what I am able to gather, CDPR took the lore and source material of an RPG and made a something else of out it. Some kind of cross between an action game, looter shooter and interactive movie.