I moved my SSD from my old computer into my new one. Because I'm a masochist who manually sets up my partitions with custom labels, it literally worked the first time I booted it. (The only change I did was swapping to the AMD microcode from the Intel microcode because of the processor in my new machine being different). When upgrading SSDs, I just replicated the same partition structure on the new disk and copied everything over with rsync, which also "just worked".
I still can't decide whether these strategies are obvious and intuitive or if they go against literally everything I've learned about what should be feasible. Can't argue with the results though!
