https://wccftech.com/apple-silicon-imac-spotted-xcode-crash-log/

Apple has not officially announced the ARM-based iMac and apart from the M1 Macs, we have yet to see the redesigned ‘all in one’ in action. However, evidence that the company is working on one can found in an Xcode crash log, thus generating more momentum that we might see the machine and its variations later this year.

A screenshot shared by 9to5Mac shows that a developer application crashed while running on what appears to be an ARM-based iMac. Unfortunately, no specifications were listed in the screenshot, with even the 'Thread' count listed as 0. The crash report file was carefully looked at and the report concluded that the application was indeed running on an Apple Silicon iMac.