Transferring about 2 weeks ago, I was told that due to the fire there is no lounge available for passengers flying Schengen to Schengen.
FWIW FCO was an absolute zoo, there were people literally everywhere you looked, SkyPriority doesn't get you a thing (and I was also flying in C so it was like a double whammy), and the staff didn't seem particularly interested in doing their jobs whatsoever.
For the time being, whenever possible, I would recommend AVOIDING Rome but if that is impossible, just be prepared for it not to be the easiest or most pleasant.