Cyberpunk 2077 may have gotten some bad reputation because of its rather rough launch. However, CD Projekt Red announced, in a note to its investors, that the game has managed to sell over 13 million copies as of December 20th.
This number of games is the "sell-through" figure. This means that the number is that of games that are still in players' hands, and it "factor[s] in returns submitted by retail clients in brick-and-mortar as well as digital storefronts."
Even after many returned the game due to it being nearly unplayable on previous generation consoles or just being fed up with the number of bugs, they have still managed to sell such a large number of copies.
CD Projekt Red has recently announced that they will be offering full refunds to those dissatisfied. This is mainly for those who have purchased the game for Xbox One and PlayStation 4, as Cyberpunk 2077 has had nothing but issues on the older consoles. From performance issues to rendering glitches, many were not happy.
However, the game does run significantly better on PC and next-gen consoles like the PlayStation 5 and the Xbox Series X/S, with only a minimal amount of game-breaking bugs and minor glitches.
CD Projekt Red is currently dealing with investor backlash due to the release of Cyberpunk 2077. We will likely continue to see reports like this from the company, as they are trying to show investors that the game is still making a boatload of cash, despite the troubles.