Archivist Achievement/Fried Egg Workaround
Saw this on TrueAchievements from a user that saw it on the steam boards and was surprised to see this worked for me.
The initial claim was to do this if you had 100% but didn’t get the achievement but I was missing “Fried Egg” still so assumed it wouldn’t work - but it did.
Go to the Fountain of Confession puzzle in the Vatican and take a picture around the entrance (a Hint picture) and if all you are missing is some glitched note (like Fried Egg) or have 100% but didn’t get the achievement - this may unlock it for you! Good luck.