Hi
@CaseySJ
After reading your suggestion (and Vit9696's, too) about the TRIM and the NVMe's choices, I bought a new WDC Black NVMe SN750 and tried to copy all my boot disk (namely "Mac") Samsung 970 Pro to it.
I used CCC 6.x but, as you can see from the image attached, it didn't exactly reproduce the partitions' structure of the source disk because there is no "Mac - Data" and no "com.apple.os.update (the snapshots partition). What did I make wrong?
Indeed, even if I copied the EFI partition with OC from source to destination, OC didn't find anything bootable.