I’d prefer GNU’s ddrescue just because I find it more robust and has better progress output. It’s functionally the same interface but lets you use a mapfile to resume sessions should anything happen to interrupt the copy.
Arguably I’m against this because you never know what’s going to happen and the conventional wisdom for appliances like this is to just backup any important configs, backup your containers and vms, then do a fresh install from the latest install media on the new disk followed by a restore of the backups. It might take a little more time but it’s negligible and allows you an opportunity to review your current configs, make necessary changes, and ensure your backups are working as intended.