Oh, I forgot, for me the most interesting fact in the graphs. If you take the BG3 graph, for example, you can see a relatively flat graph with peaks and very long intervals between the hills, even when the game began to lose players sharply from 500,000 to 150,000, the graph trend remained (for convenience, you can take a scale of 1 week). The graph is flat, without the characteristic jerks downwards, even when the number of players began to fall sharply. These long straight intervals were most likely caused by the fact that, roughly speaking, some of the players were resting or sleeping and did not play, but sales continued, so straight lines were obtained. And naturally, in prime time we see peaks. If you look at the graph of the same DAV, we see a similar picture at the beginning, and the first days are clear straight lines, and then a clear line down after the main peak (and this is normal in fact) for two days, but then the graph turns into some kind of cardiogram of a patient with tachycardia with constant jerks up and down. I can assume that while people were resting and in between prime times, the number of sales was not so large that the game reached some kind of plateau, so we see constant jerks up and down. And I think this indicates just that people who bought the game are slowly going through it (Usually for casual players 1 week for such a game is just a good period), they are slowly leaving the game, but the sales level does not allow the game to reach some kind of stable plateau yet, due to the outflow of users and insufficient sales for this.
But these are purely my thoughts, I am not an analyst =)