I don’t know where to start. How much will the leaked information help the Russians and harm the Ukrainians? How much of it was not already common knowledge? How did Teixeira come to have access to information that neither his relatively low rank nor his role as an IT person justified him seeing? What about the role of the media? The New York Times tracked the leaker down then told the US government. Very 1950s.
If this were happening in the UK, I would not dare to ask the following for fear of prosecution, but since it is happening in the US and my tiny rivulet of speculation cannot possibly make any difference to the tsunami already crossing the world: which was he, or which was he more, a leaker, a whistleblower, a patsy for someone higher up, a braggart wanting to impress people online, a hero exposing US government lies, a traitor sending Ukrainians and fellow US servicemen to their deaths?