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Independent of that, I would say. As long as you have two devices at all times, it should be more than ok. The important bit is to have the recovery account set to someone who can definitely help you in case you either get hacked or lose all your keys.
And usually your owner key is not on Hive keychain, so you need to store that one at least securely somewhere.
Alternatively, you can put them on a USB pen (password-encrypted) and store that in a safe place, just in case.