Are there different types of wrestling/playing with dogs?

there is a such thing as a dog being dominant, but "playing for dominance", there's no such thing. if a dog is being dominant, it's not necessary a bad thing. if one dog is dominant and the other is submissive, it's fine, there's no fighting. but now,if both dogs are being dominant, that's when it's a problem because you will have a huge testosterone fight. when dogs are being introduced to each other, if one of them starts to stand as tall as they can and leaning over the other or the other, that one is being dominant. and if the 2nd dog is fine with that and just lets the dog do whatever he wants, everything will be fine. but if they both are standing tall and trying to lean or hump over the other, you will have a fight on your hands. when 2 dogs are being dominant over each other, you will not see any playing, they will almost instantly start fighting.