Rybakina against Osaka: never ever in that match was Rybakina confident in her FH, often showing again and again she just could not time it.
And for much of the match, she could not get a first serve in - in the final set wherein she was never broken, she served at only 50%
So why did she still win?
You have to say that Osaka missed a real opportunity.
She had one plan, particularly in that last set, which was to relatively safe deep balls to the Rybakina FH and hope for errors.
She played it safe, too safe. One of Rybakina's underrated shots is her kicking 2nd serve, but it still can be attacked.
But Osaka never did so, content mainly to put it in play, but that won her only 50% of 2nd serve returns in the final set.
Osaka has been focused on returning more balls in play and cutting down on errors, but in this match she all but gave up on aggression and it cost her.