4. Make Use of Hardware Wallet: The most secure way to store your Bitcoin is in a hardware wallet.
Personally, I believe setting up a cold wallet on a
secure airgapped device is safer than using a hardware wallet. Some may even argue that paper wallets are safer.. The advantage of hardware wallets is they are easier to use and they are more convenient for daily usage.
2. Don’t save your recovery seed digitally: Keep your 12-word secret recovery phrase off any digital storage. Everything that is online as you may well know is vulnerable to hackers.
Saving your wallet seed or wallet file digitally doesn't mean it has to be online. You can save them on a USB or airgapped device which has never been and will never be connected to the Internet or to any other network. A digital backup of your wallet is not a bad idea as long as you know what to do to keep it safe.