I like that law! My law for the past few years has been every app expands until it is beyond bloat, which is recognizable when it has the feature du jour, which can be found across every popular and unrelated app. At the time, that feature was stories, which could be found in Snapchat, instagram, Facebook, WhatsApp, Uber eats, and I think even Venmo at one point.
Once you got away from social apps, it was clearly feature creep. That was my indicator for when there was probably a better alternative app for accomplishing the app’s original purpose, but it was often too late to switch due to the network effect.
:)