An M1-based Mac running Parallels Desktop 16.5 and Windows 10 Arm consumes 2.5 times less energy than a 2020 Intel-based MacBook Air.There are some interesting findings about performance of Apple M1 and Parallels Desktop 16.5 for Mac:
Right now, Parallels Desktop for Mac 16.5 is good enough to launch it commercially, according to the company.