Firstly, I'll say Stellaris is a great game, but I would also say that Stellaris isn't actually a pure 4X game if that's what you're looking for. Something like Gal Civ 3 or Star Ruler 2 would be better on that front. Stellaris is more like Civilization in space, or Crusader Kings.
It's grand strategy, about managing empires at a high level, whereas a 4X game tends to be more about resource management, research, and building spaceships.
It's grand strategy, about managing empires at a high level, whereas a 4X game tends to be more about resource management, research, and building spaceships.