Yes this is possible, but very stupid, and pointless. You would have to reverse each function to pseudo code, and then this pseudo code to normal code, nobody does that since there is no point in doing that, people are doing something like this but only for some functions, e.g. one cheat developer revering resolver of other cheat to copy logic.
Go talk with chat gpt, since I guess u have a lot of questions. But neverlose like any other internal cheat is .dll, but there is loader thus .exe application that will download this .dll from server, and then this loader will inject this .dll to game, in our case cs2 or csgo.