Apple has announced that it will transition its entire Mac lineup to ARM-based custom silicon over the next two years. Support for Apple silicon is now available in macOS Big Sur and developers can get started right away on a Developer Transition Kit (DTK) that includes a Mac Mini powered by the A12Z Bionic. Despite the transition Apple will continue to support Intel processors for many years to come.
https://www.notebookcheck.net/Apple-confirms-historic-transition-of-entire-Mac-lineup-from-Intel-to-ARM-developers-now-have-access-to-an-A12Z-Bionic-powered-Mac-Mini-DTK-for-US-500.477129.0.html