It’s not really about the strategy – jumping from board to a digital counterpart, it’s the book keeping that is the huge difference. All the stuff that happens automatically between turns - in civ, this is income, maintenance, trade routes, research, culture, production, population growth, happiness, religious pressure, diplomatic decay, auto move, terrain development, experience, etc figuring in all the bonuses and penalties applied by every citizen, every trade deal, every tech, every wonder, every cultural development, every special land, etc.

In theory in a 4X you’re supposed to be aware of all those rules and factors that are in play but in practice the game is too large to account for every instance.

In a boardgame, you’re executing that by hand, so it’s much more direct.