This is why I don't like steel plates or hardware wallets. It's just another layer of abstraction and risk. Personally, I generate multisig keys on a never-been-online raspberry pi, encrypt them with GPG, distribute them in encrypted online backups with Shamir Secret splitting of the GPG secret key that go out to friends for another layer of multisig. This makes it so that I always have access to them in case of a fire, or if I move, as long as my multisig partners are alive (and I have enough redundancy to handle some loss of partners). This also protect me from the $20 wrench attack (who can buy a wrench for $5 these days?)