I definitely felt that PC CDrom callback when i played the game as well, i had intense flashbacks of the demo CDs of point and click games i played as a kid, pajamasam and marine malice and whatever that one with a car was. They share the same cacophony of onscreen elements in each tableau, but i think also the untethered-ness of the whole thing: the demos i played were from cereal boxes and i didn’t have a notion, at the time, of the difference between a cereal box demo and a full product, so i viewed these experiences as truncated non-sequitur games, and the uhh “structural chaos” of 10 beautiful postcards gave me the same kind of vertigo?
Also, 10 beautiful postcards is (in part) about the absurdity of capitalism and the way its agents uphold the mirage of a rationale behind it (half the characters in the game are very intent on explaining to Pesky that It Makes Sense, just hear this out, witness this clever scheme!!) in a way that only works as long as everyone is too busy/overwhelmed/poisoned to stop and think about it, and i think CDs in cereal boxes are kind of like that also. Like whose idea was it to put CDroms in cereal boxes honestly?? Sometime in the past someone came to an exec with the brilliant idea to strike a deal for the promotion of their videogame with fucking kellogg’s and apparently noone stopped to ask what the hell was going on.