There seems to be a mode where each civ stays the same across the whole game.

[moysturfurmer]

6:45ish here

 

[SammyKhalifa]

"Been working on it since before the Pandemic." Not surprising but still interesting.

 

[FishFishFish]

I think he is referring to the "historical pathways" rather than civs staying the same.

 

[syllogism]

Right, he is saying you can opt out of the limitations and allow switching to any civ.

 

[wesplaysciv]

Says trading system is different in each era