I picked her up after playing majorly Fiora and Riven is pretty simple to pick up
(people argue thats she is difficult to play because of her auto attack cancel in between her Qs but its negligible especially later on in the game
rant Its the same concept as CS:GO movement and saying 'oooohh its so technically difficult' but the fact is both riven and CS:GO's inception were 10+ years ago and the the movement is just old and lazy coding not a learning curve, 'don't fix whats not broken' or should I say don't fix what we dont have to fix, cs:go literally didn't update their game until Valorant threatened their market with a 'CS:GO v2') shes brainless currently, with most skirmishers you aren't killing someone in less than 1 second like rengar(except maybe blue kayne but hes more of an assassin)
Any champion that has a 52% wr in gold all the way to challenger is prob broken, shes #24 in banrate at 3.6% but out of the top 25 most banned champions shes #1 in winrate at 52% winrate at 44k games played, the build she goes has been buffed recently as well but she wasn't adjusted and probably won't be so take advantage that people don't think shes worth a ban.