Have you installed the Civilization VII 1.0.2 patch? Did it fix the late-game crashes for you? Share your experience in the comments below (Emulation settings welcome).
The update tweaks the "Aura of Influence," making positioning more critical. Units outside a Commander’s direct radius now suffer a more significant morale penalty, forcing players to think more about "Army Groups" rather than lone-wolf scouts. 3. Urban Complexity: The District Evolution Sid Meier-s Civilization VII -NSP--Update 1.0.2...
Your chosen leader remains throughout the entire game, but you select a new civilization at the start of each Age based on historical paths or gameplay achievements. Have you installed the Civilization VII 1