You've told me this but I have yet to see any evidence. I don't really know how Barbatos (from Dark Nights: Metal) can be the Hyper-Adapter. Barbatos was locked out of the DC Multiverse for eons and therefore could only interact with through his follows until Dark Nights: Metal issue 1. And the Hyper-Adapted was able to appear in different points in time within the DC Multiverse, Something that Barbatos couldn't of done. So unless there is any proof of a recon, we can't say both characters are one and the same.