Hello I am all set up with my Ledger Nano X and have something there. I have also a recovery phrase. I own Ledger NANO S apart from this which is brand new.
1. HOW CAN I DO A BACKUP of those amounts of assets that I have information on Ledger Nano X?
2. What is a purpose of doing this backup if anyway I can have a recovery phrase so I can restore it in ANY case? I would simply buy another new wallet and restore it, so what is the purpose of having a backup wallet?
What do you mean? About what backup are you talking about?
I suppose that's just an option for these who need it? (even if idk what is that you're talking about); the only thing you actually need is your recovery phrase/seed. That's the key for your coins if anything happens with your wallet. Everything else is just for convenience.
I would simply buy another new wallet and restore it, so what is the purpose of having a backup wallet?
If you're talking about a non hardware wallet generated from the backup seed, some people may not want/can't afford to buy a new one, or need their coins ASAP and can't afford to wait for a new Nano to arrive.