Chapter 261 confirms the Kenjaku Domain theory?

The fact that Yuta uses infinite void basically says that the domain kenjaku used against Yuki was Geto's right? This also confirms that Domain are dependant on the body and not the soul. Yet this also makes no sense because Sukuna uses Malevolent Shrine with Yuji and Megumi. Each technique has a different world according to Mahito so I guess we can just say regarding Kenjaku's technique there is no fixed Domain and it is dependant on the body while in the case of the reincarnation of the past sorcerers they still have to use their own domains.