To unlock the letter on the desk, you have to have completed all the other endings in the game then load into a new shift. This information was not available at the time of my uploading this, as some people speculated it just appeared, but I did have all endings unlocked and started a new shift. Which is when it appeared. Confirmed on roommates account that new games do not get this.
You have to finish all the endings. I had already done that to unlock this, but at the time of posting this, there was no guide as to how to get the letter to appear, some people just assumed it appeared at some point.
To unlock the letter on the desk, you have to have completed all the other endings in the game then load into a new shift. This information was not available at the time of my uploading this, as some people speculated it just appeared, but I did have all endings unlocked and started a new shift. Which is when it appeared. Confirmed on roommates account that new games do not get this.
What do you have to do to get the letter on the desk?
You have to finish all the endings. I had already done that to unlock this, but at the time of posting this, there was no guide as to how to get the letter to appear, some people just assumed it appeared at some point.