trappedslider
Legend
The Lord of the Rings: Return of the King (fantasy)
That was done because, the Academy from what I recall at the time decided that it would a cap stone for the whole trilogy along with the fact that Fellowship and Two Towers were both up for the best picture when they came out.
Here's the standard tvtropes entry Academy Award / Useful Notes - TV Tropes
Honestly, I'm not 100% certain that the Academy is ready to hand out a best picture to a streaming service,so I think it may come down to Joker or Once Upon a Time in Hollywood and Parasite will more than likely get Best International Film.
But if the Best picture does go to Netflix, I'd expect to see the other streaming services go all out for next year.