I'm aware that and X server is going to magically appear in the chroot, but I was hoping xhost would make it unnecessary, though I was pretty sure going in that it would not.
No, I did not, as I had no need to run 64-bit Windows apps. The point is, I could not copy the wine *prefixes* over. This, I did not anticipate. Not disaster, but definitely a pain.
Gentoo still uses openrc by default.
Meanwhile, I'm still limping along with Funtoo 1.2 on that system.