A few odd things, mostly laws.

[Von Consul]

Have VV and EUR. Noticed this one when playing as a republic, and haven't located a thread on it yet:

Lex Aelia et Fufia: says you need a religious faction leader, however you can only pass the law when you don't have a religious faction leader. The rest of the requirements seem to work fine.

Lex Gellia et Cornelia: seem strange that you get two bonuses and no penalties for a single law, the flavour text also makes it seem out of place. (Same is true for monarchy Citizenship for Sale)

After that a few odd points:

Small aside, it would be useful to have a tool tip about who can and cannot become general in a republic, just like all other offices.

Every monarchy in my game has become a Theocracy, not certain how reproducible it is over many games, but seems odd.

I recall once seeing the special event "Control the Seleucid Capitol: Antioch" when looking at their Nation Overview. However their capitol in game is Seleucia.

 

[Cheexsta]

Small aside, it would be useful to have a tool tip about who can and cannot become general in a republic, just like all other offices.

There already is one. Select an army and hover your cursor over the text "No General Selected" or whatever it is (not the questionmark portrait). That will tell you the requirements of becoming a general.

Every monarchy in my game has become a Theocracy, not certain how reproducible it is over many games, but seems odd.

I've noticed this as well. It seems the AI is pretty keen on those Decisions and Laws, even if they're detrimental; I once made a Decision that had only negative effects and yet, within a few months it seemed like just about every AI faction had adopted it. Same goes with laws.