I am using bitcoin-core for my offline storage.
In electrum I can do a paper backup by writing down the mnemonics.
bitcoin-core seems to be using a different mechanism to generate the wallet.
What I am thinking now is that I can do a paper backup for each private key of the receiving addresses generated in the bitcoin-core wallet. So if I generated 100 addresses and transferred some BTC to all of them, I need to backup all the 100 addresses.
Is this the only way to do a paper backup for bitcoin-core wallet? If this is the only way. I think I should just generate 1-2 addresses only so it is easier to back up, and never forget to always put the
change addresses back to those 1-2 addresses.