Starting with Parallels Desktop 20.2.0 you can use x86 emulation on Apple silicon Macs. This functionality allows you to run some Intel-based (x86_64) virtual machines (VMs) on Apple silicon Macs via our proprietary emulation engine. https://www.parallels.com/blogs/parallels-desktop-20-2-0/
Quite so, but we are told (https://www.parallels.com/blogs/parallels-desktop-20-2-0/): "Since the functionality is in the early technology preview stage, it has some significant limitations: Performance is slow--really slow. Windows boot time is about 2-7 minutes, depending on your hardware. Windows operating system responsiveness is also low. Only 64-bit operating systems are supported. But you can run 32-bit apps. Since there are millions of apps in the world, we couldn't test all of them. I invite you to give it a try and share your feedback with us. There is no support for USB devices which means you won't be able to connect external devices to your VM. Parallels hypervisor can't be used. All VMs will be booted via the Apple hypervisor. Nested virtualization is not supported either." It may be a solution at some point in the future but, for now, I don't think it responds to the requirements of the original post.