Does Atom support anything besides x86? Does the editor actually need to run on a 64-bit architecture, or is that just the only one that they produce official builds for?
I don't know off-hand any software specifically built for aarch64 that couldn't be compiled for aarch32 as well. I'd be interested in hearing about it though, and what 64-bit provides that 32-bit doesn't, when we're talking about a device with under 4GB of memory anyhow.
All I know about Atom is that people come on the forum and report that they can't get it to work. Then they are told that the core team has no plan to support it. I guess there could be a pull request.
I myself am curious as to why something would not work. There must be new features in the 64-bit architecture.