Nope. The userlands and installers are not customized. The multiple aarch64 images are simply different uboot (first section of bytes). You could actually get a generic image, dd a different uboot and recreate any of them.why not? the listing of the iso's in the download area for the images makes a pretty strong case for yes.
I think the only exception is RPI where it has accrued some clutter compared to other builds.
Yep, which is why I was careful to state in my previous post "Other than architecture, the userland and installer is identical"Besides, userland and installer kind of have to be compiled for specific architectures. You can't just rip /bin/ls out of an amd64-tagged image and stick it into an arm64-tagged image...