In theory, running Apple Silicon apps on ARM64 linux machines would be really nice. But we are still far from having a performant and feature-complete implementation of doing so.
Darling only targets x86_64 stuff. Still, it's a cool project.
Kinda sad that there are very few updates though [1]
their AppKit implementation receives about 20-30 commits every 5 years. Cool project, but you are better off waiting for proprietary software manufacturers to release ARM64 builds (a lot of them do now) and patch the holes with FEX.