I really, really dislike how the game clearly wants you to micromanage and hyper-specialize everything by giving you a lot of flexibility in some areas (change cards whenever you want), but also arbitrarily forcing you to commit some of your most powerful resources forever (districts are permanent). Playing tall basically isn't viable, when it was reasonably strong in Civ V. It does a lot of things new, and interesting and right (workers, districts writ large, combat), but fundamentally it's a tough row to hoe when you want to do anything but paint the map.