I'm not sure if Sara ever told the Legends she died, besides the fact that she's a clone, but she did say she was killed this episode, but like always, there was barely any reaction to it because they were all trying to survive.
I don't think we ever got the answer to Sara's soul, and I don't think we'll ever get it. I personally see this clone simply as a (mixed) copy of Sara, while OG Sara is dead. Bishop has 6% of Sara's DNA and apparently thinks like Sara and knows everything she knows. Are we going to say Bishop is Sara? Does he have part of Sara's soul too? Even the Sara clone is no