This is a deleted Civil War scene. The middle or start of the battle at the airport. And I just thought...
Natasha might be the one who suffered most from the Accords. I mean psychologically, cause she wasn’t seriously injured or put in prison. She saw her family (as she said in Endgame) fight and injure each other.
She was trying to prevent this whole thing from happening, she was some kind of a bridge between Tony and Steve. And she had to see them fight, had to fight with her best friend, saw Bucky, fought with Bucky as well. She still fucking came and asked everyone if they were fine.
And they didn’t even show what happened to her in the end.