The operation system is not the problem. They for sure have a full macOS for ARM working. Its the applications. Most desktop apps are not sold via the App Store

The operation system is not the problem. They for sure have a full macOS for ARM working. Its the applications. Most desktop apps are not sold via the App Store, and there are the VMs (Windows, Linux) to think about. For my work for example, I need to be able to run x86 binaries at full speed. So an ARM based Mac would not work for me.