,,,the loss of functionality in SuperDuper! and Carbon Copy Cloner is the ability to make a bootable backup (clone). This is a significant distinction from Time Machine. So far on Apple's SoC M1 Macs (to date) SD and CCC can make backups of the data portions of the drive.
Hasn't joemike reported that CCC can consistently make bootable clones of his M1
providing the hardware configuration is copacetic?