The shift from procedural to OO brings with it a shift from thinking about problems and solutions to thinking about architecture. That's easy to see just by comparing a procedural Python program with an object-oriented one. The latter is almost always longer, full of extra interface and indentation and annotations. The temptation is to start moving trivial bits of code into classes and adding all these little methods and anticipating methods that aren't needed yet but might be someday.
Haven't I seen that all too often on that project that I have worked on over the past 10 years?! Premature optimisation is the root of all evil. Unnecessary architecting the solution won't be too far from that.