Pic related. My theory it depicts knowledge, as those people are the keeper of knowledge, or bringer of that.
The mayan/aztec one is actually from the Olmecs, an earlier Mesoamerican Culture. It displays the feathered Serpent all these cultures had and for the Aztecs was Quetzacoatl, bringer of knowledge.
Göbekli tepe apparently talks about a comet bringing civilization.
fitting the alignment of angkor wat and the pyramids of 12,5k years ago, as well as the comet that struck earth 12,9k years ago
In case of the sumerian i suppose it is enki
Enki (/ˈɛŋki/; Sumerian: dEN.KI(G)𒂗𒆠) is the ancient Sumerian god of water, knowledge (gestú, literally "ear"), mischief, crafts (gašam), and creation (Nudimmud: nu, likeness, dim mud, make beer)
Same role Quetzacoatl took, bringing knowledge, or Satan with the apple. Prometheus who brought the fire very well could be the same enthity, Lucifer. The Kabba in Mecca supposedly contains a meteorite, which might be the one Göbekli Tepe speaks of or Satan that was thrown to earth
but i assume there is more to it
Now the FALLEN angels are said to have brought the knowledge for witchcraft and warcraft. Ironsmithing is one of these skills used for warcraft. Turns out the ancient egyptians used iron used from meteorites aka FALLEN rocks in example for this dagger
I basically believe that the different Pantheons around the world came to worship Gods angels, fallen and not fallen, rather than God himself.
Eitherway the same arbitary symbols being used in the same manner across the world shows that either whatever is depicted really happened and was significant enough to record, or that there was global communication existent to share the symbols and spread them across the globe