banduan I don't think it's a particularly devious role.
Devious isn't the word, but it'll remain a strange-looking role, for instance with the eagerness he'll have to get off
the ball once he receives a pass.
https://arseblog.com/2023/08/6-feet-kai-and-rising/
Was just going back through this mini-dossier and Havertz is certainly doing some odd stuff, he is ghosting off the ball into every forward channel from left wing to inside right, and also makes a back post run six times a half. Seems very little like what Øde does, or Xhaka was doing.
I'm not sure about the shape change you mention versus Ødegaard, but I'll keep an eye out versus United. It'd be a major waste to have Øde consistently beyond his preferred shooting distance round the edge of the area.