Cyberpunk 2077 is categorized as an action role-playing game. So yes it is
I never played the witcher 1 and 2 and I enjoyed the witcher 3. I would probably consider it one of my favorite games of all time.
Season 1 has 8 episodes. There is also season 2 of the witcher in the works that is scheduled for reason in 2021 with a unspecified number of episodes.
Cyberpunk 2077 will be on Steam at release which is November 19, 2020
I would say Skyrim has better replay ability since you can choose many different ways of playing the game. Skyrim also has thousands of mods to install to fundamentally change how the game is played.