The protective film of the inside of the glass (in contact with the casing) is half off ... have to clean the inner pane before mounting.
Cutting glass is very basic, with a contour that is not properly trimmed (around is dotted with micro bursts that "scrape" when passing the finger).
The sticker on the inside that holds the glass in place ... it is ill-posed than on the inside in places (by masking a portion of the screen), and beyond to other places.
I rarely came across such an amateur article ...
I highly recommend