CD Projekt was a target of a cyber attack, as you may know by now, and the hackers released a lot of stuff that will undoubtedly hurt the company, including CP2077 bug montage from 2020.
When Cyberpunk 2077 launched, it was painfully obvious the game was unfinished and rushed out the door in order to grab additional sales during the holiday season of 2020 when the buyers would be more inclined to spend.
Throughout the following months, CD Projekt attempted to apologise and promise fixes as well as "explain" what went wrong. In the video below, one of the co-founders of the company even claimed that they were proud of the PC version. Furthermore, when interviews with employees revealed many knew the game wasn't ready for launch and thus invalidated Marcin Iwinski's argument that internal testing didn't show many of the issues players experienced, another CDP head stated that the report's sources were not reliable .
Overall, the bigwigs kept claiming bugs were either not showing or that employees who said otherwise were unreliable.
In the meantime, CD Projekt was a victim of a cyberattack that resulted in source code for multiple games and additional files getting compromised. It is these files that recently popped up and revealed that employees were indeed well aware of the state of Cyberpunk 2077 last year as they made a montage of ridiculous bugs, dubbed Cyber ElBuggado 2020 .
Given the fact that the montage contained very familiar issues with T-posing and physics glitches that went through to the release version, it is rather clear that the aforementioned sources were reliable and internal testing did show many issues the players experienced.
Keep in mind that these bug montages are somewhat commonplace with dev studios and are not a way for the devs to rub it in to the players - they rather serve as comedic relief for the team in the form of an inside joke. The only reason the reel actually popped up in the argument is that it proves numerous bugs that were present during development were obviously detected and still made it to the game, countering the statement made by the execs.