The Mac M1 requirement only relates to if you want to run the actual Kyma Control app on a Mac instead of on an iPad. Apple Silicon Macs can run some apps that formerly could only run on iPads and iPhones.
Kyma Control does not depend on a Mac when it is used on an iPad. It works with Kyma 7 systems, including those running on Windows PCs, as long as it has the necessary network connectivity.