No. As said, it is based on a YouTube tutorial. It was lately renamed to be better *searchable on Google Play. It's not a fangame, it's a marketing strategy.
Not really. I followed a YTB tutorial to make a basic platformer, and then made it into a proper game. It was originally called "CUBE - the possible game", but I renamed it to the 3d geometry dash for clout, which has been a great desicion bcuz it went from like 5 downloads a month to 60 downloads this month on the PlayStore
