Personally, I am not very knowledgeable about the specific scorpion advancements that each civilization receives.
While I am aware that civilizations that are known for their strength in siege warfare, such as the Bulgarians, Celts, and Ethiopians, may receive heavy scorpions and siege engineers, I may not have a comprehensive understanding of which civilizations receive these upgrades.
In regards to monks, I find it difficult to keep track of all the available technologies.
I know that civilizations like the Aztecs, Saracens, and Spanish have a complete set of monastery upgrades, while the Burmese lack only the heresy technology.
However, since there are a total of 42 civilizations, I may not be familiar with the upgrades that each individual civilization receives.
Lastly, I have limited knowledge about cavalry archers and their available technologies.
I recently realized that Italians do not have access to heavy cavalry archers.
Additionally, the concept of parthian tactics and thumb ring can further complicate understanding the available upgrades.
Given the sheer number of civilizations, it can be challenging to keep track of these details.