This is likely just that if someone chooses an OS that requires a special HW just to build a release with no easy cross-compilation possible, and to pay a gatekeeper just to publish it, and that can't even run on an emulated computer properly, they can't expect FOSS maintainers will be bothered with much more than "here's a source code, build it/test it/do QA yourself if you like" for their particular pet platform.

For platforms where development is unhindered by arbitrary obstacles like these and others, wireguard works fine. :)