I do not yet have an M2 Mac, although we've received very few reports of problems with them. Just recognize that we - as in SuperDuper - cannot change the way the copy of the OS is made. It's made with Apple's own tool, and if there are problems booting that can't be resolved with a different drive, it's a bug of Apple's we cannot fix...they have to do so.
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--Dave Nanian
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