I would clone the second disk to the new disk (with gparted for instance) an then resize the partion to fit the disk. This way it would be a simple disk swap without needing to do anything else.
PS: I think simply copying the files will go wrong with the hard links.
Same holds for YouTube. They just got rid of the only no ads subscription here. Which was half the price of premium. So they kick people out of that, and afterwards going to war with ad blockers... If they really wanted as much people as possible to pay, they would have kept that abbo. But probably it's better for them financially to have a bit more with ad blockers and ads and convert some to the premium tier
Sorry I wanted bit to fast. Clonezilla will clone disk including huid (which can mess things up is you keep both in the pc). But then you can boot clonezilla, clone disk (has a flag -k1 for resizing partitions), remove the old disk, and should work without changing anything else. If you want to change the settings anyway, there are more options like DD. For clonezilla instructions, see https://clonezilla.org/fine-print-live-doc.php?path=./clonezilla-live/doc/03_Disk_to_disk_clone/00-prepare-clonezilla-live.doc#00-prepare-clonezilla-live.doc