Although I have two torts wondering in the same garden, besides the occasional scuffle it all seems quite peaceful.
But would agree two or more together can be like cat and dog.
The thing is, there shouldn’t be any scuffles at all. Tortoise bullying isn’t just physical. In fact, it’s usually just mental. “Cuddling”, sitting face to face, “following”, and just being together in general are all one tortoise trying to push, stress, and chase the other out of its territory, and even just seeing each other puts a great straining them. It only gets physical when they’ve had enough.
If by a scuffle you mean physical altercations, then they are in no way peaceful. I personally would separate them.