Currently when it’s not possible to open Figma files in Microsoft Edge Version 101.0.1210.32 (Official build) (arm64) on Mac.
You get the error of an unsupported browser. Edge is a modern browser and should be supported.
I suspect because the Edge version is lower than v79 with is specified it fails. However, the latest arm64 version is 10. I think it’s a matter of factoring new Mac processor as part of this.
Thanks for understanding.