The thing you are forgetting is the lindy effect of your hardware device. The longer you have a hardware device, the less likely it could be compromised and you could lost your funds. If you decide to change wallets, you have a risk that your new device is compromised or a technical risk that you fuck something up. Also,never send all your funds at once on a new wallet. You need to send the funds gradually over multiple months or even years. And OBVISOULY UTXO PER UTXO. NEVer mix your utxos