You know this "pretend social media app" called Palmsy? It lets you make posts and the app pretends people are liking and boosting them, but actually everything is local and not leaving your phone.
Honestly it sounds really nice. There are actually quite a few completely genuine use cases. Venting destructive thoughts that you wish you could post but don't want others to see. Reducing the time you spend on social media. Or as a novel way to keep a journal.
Thing is, it's only for Apple devices. I've been thinking about making a free software version of that :02Calc: