Hey Ziggy,
I would never put anything not shielded into a drag chain. At the moment when you drag two cables together in parallel and close to another, EMI can cause problems (and if you have a drag chain, you will surely put other cables into it, at least Z stepper cable). This was discussed here the other day when it again came up that Onefinity Support confirmed that drag chains are not supported (they didn’t say “not recommended”, but “not supported”).
Also the cables mentioned there are specially made for use in drag chains, I would only use these.