Besides 2025, what’s the most controversial Oscars Season?

I’ve been a longtime fan of the Oscar’s (I’m 20 lol), but I’ve really been trying to think of a year in recent memory that’s been marred with as many controversies overall. Of course at the ceremony, in 2017 there was the Best Picture situation, but besides that, has there been a messier or at least somewhat messy Oscar’s season in comparison to this year?