What is the reason for the unique shape of the Lechem Hapanim? I am aware of Rashi's explanation citing the mishna in Menachos 11:4 for the reason of its name is accredited to the multiple surfaces it possessed.
After a little bit of "Googling" I was led to a Chabad.org article speaking about the matter and I found this image of that summarizes Machlokes Rishonim regarding the understanding of the Machlokes in the Gemara of the shape of the Lechem Hapanim (From the Chabad.org article cited above):
Is there anyone who writes about the reason for the uniqueness of shape possesed by the Lechem Hapanim1?
1 Additionally I happened to notice regarding that the shape of the Lechem Hapanim is particularly non-convex in shape I am curious if there could be a reason for this, but am unsure of the legitimacy of asking about that more than the reason for its shape in a general sense.