The Stoneborn of Crowfall are not dwarves. They sometimes get referred to as dwarves, but it’s a ridiculous name because they’re as large as normal people. They’re also not a normal race, either, as they’re less “living creatures” and more “elemental creatures created at the dawn of time.” Also, every time one of them dies, that’s one less member of the race; again, they’re not living creatures and can’t reproduce. Oh, and they’re also a playable race, so this should work out well.
In-game, the Stoneborn are all male (because that’s apparently the default the gods chose to create) and boast increased strength, durability, and resistance to knockdown. They can also slot a special racial skill to make themselves more durable for a short span of time, one of the benefits of being literally made from the ground. So while they’ve got elements of dwarves, you can rest assured that they are not dwarves. They’re not even small enough to be called dwarves.