Note this means overall hard so USUM's Ultra Necrozma may be hard but it is one fight in the entire game. Also Zoroark can cheese it. And ROM hacks like RR aren't made by Game Freak so they also don't count
also doesn't mean SM/USUM are bad because they are actually pretty good. X and Y had revolutions to the meta and what did SWSH introduce... Dynamax, which I agree with Piers on my opinion of it. made SWSH too easy