It's interesting that Jean Loring has joined Dr. Schwartz (and Quentin and Susan Williams and probably a few others) in the circle of civilian professionals aware of the Green Arrow's identity. I wonder if that means she'll play a larger recurring role going forward.
But then, Arrowverse superheroes are really, really bad at keeping their secret identities, aren't they? Zoe and Raisa both figured it out some time ago, and Ollie's enemies usually know his identity before he knows theirs. Meanwhile, Barry Allen is really casual about showing his face to other metahumans who might or might not be allies, and Supergirl works with a whole government agency and makes no attempt to hide her identity from whoever happens to be in the building.
I often think that the change from the old TV shows where superheroes continually managed to keep their identities secret from everyone except maybe one key ally (Batman/Robin and Alfred, Captain Marvel and Mentor, Wonder Woman and IRAC, the Flash and Tina McGee) to the modern shows where heroes have constantly growing circles of people aware of their identities is related to the growth of modern communications and social media and the erosion of privacy. We're all more interconnected and exposed than our parents or grandparents were, and so we expect fictional characters to be as well. Although it's also just a function of serialized TV, the need for stories driven by constant change and crisis in the main characters' relationships, in contrast to the old approach where every episode had to restore the main characters' status quo at the end and only guest stars got to change. But it's definitely accelerated in the past decade. Smallville's Clark Kent had his identity revealed to a new character maybe once every season or two, while in Arrow's first season, a new person found out Ollie's secret roughly once every four episodes, and The Flash started out with a team of three people aware of Barry's secret from the get-go and Joe finding out at the end of the pilot, while Supergirl had her sister, her foster mother, and the entire DEO aware of her identity from the start. Black Lightning is actually a bit of a refreshing throwback -- at the start, only two people know his identity, and at the end of the season, it's been discovered by only two more protagonists, plus one or two surviving bad guys -- but, for a change, his arch-nemesis still doesn't know his real name!