It all boils down to the same thing "do not backup your wallet seed phrases online".[1] it's never an option to backup whatsoever that has to do with your wallet security online no matter how you have been assured security it's always risky knowing fully well that as days goes by that is the stronger hackers develop their traps. [2]
Using an airgapped devices [3] reduces every chance of your wallet getting hijacked by any hacker, air gap here mean not have connections to the outside world. to maintain this one could disable every connectivity of the devices to prevent virus attacks.
What gives better security is always any offline events, if you back up your seed phrases offline like using the crypto steel [4] type of backup you have more security than back up your recovery seed phrases online even with encryption.