I actually read both of these in the game just a few days ago in my now finished playthrough and honestly... I found it odd immediately as I was reading them how a cunning and cautious diplomat such as Gortash would be so stupid to directly be writing to these people in the manner that he does, literally creating incriminating evidence against him. I understand where he comes from and what he went through in life, but that's not how one becomes an Archduke of Baldur's Gate
So having read both versions I honestly quite like the new letters. They're far more diplomatic and cautious, while still maintaining his iconic cunning between the lines.
Anyway not all developers work on the exact same things. The ones responsible for gameplay bugs are not responsible for writing the game's lore. And Baldur's Gate 3 never really left Early Access, so all these things being changed, shaped, improved and even added are simply a sign that it's still being treated as an Early Access. Which in my opinion is good, imagine if they left the game as it is right now. I dread to even imagine.
As for the images; they have to end on their file extensions such as .jpeg/.jpg/.png and such. Twitter seems to be one of the sites that use their own unique systems which don't display these urls properly, so unfortunately you can't embed those. You'd have to upload them to some other site and then embed them, or dig through the Twitter's code by clicking F12 and finding the image's direct source.
