After finishing the monument from the savefile just attached, the game starts showing a celebration screen and the last one is a black screen from which you cannot leave.
A friend tested this on Windows and it worked correctly for them so I think this is specifically a Linux version bug. The Windows friend said after the different celebratory images he saw an "animation playing", I saw no such thing, just the celebratory screen takes, then just black; the animation didn't play, no statistics, no plot, no nothing.
PS: the previous save I uploaded was the wrong one, I should've uploaded my quicksave file instead. But this time I made sure to upload the correct save and had a friend test it.
Grab the attached savefile. Press H to home in to the Printing Pod. Move to the left to locate the monument. Build the head of the monument over the base and body (there's enough materials) Wait for it to be finished Get the final cinematics and have have the game get stuck without end.