Hi, I would like to upgrade from my ledger S to a new bitbox. I know the ledger S is supposed to be safe, but I've been thinking about it lately.
Do you think I can put the seed of the ledger in the bitbox?
Sure, you can do it, if you already have coins there with addresses you actively use, and if you didn't expose old seed phrase anywhere.
But if you want to be more secure than I would suggest to start fresh and generate everything from zero.
Or is it safer to move the funds with some transactions? (so new seed for the bitbox)
what if I restore with the "ledger" seed, then add a passphrase and finally move them? (this last part is also unclear in my mind

)
I think this is safer, but you will have to pay transaction fees, that are not always cheap.