The Highest Security

Started Bitcoin this year so let me see if I’ve got this right:

• Pin protected airgapped hardware wallet
• Seedphrase stamped in metal washers in a tube and hidden well with instructions in your will to next of kin on where to find it
• A memorized passphrase to said hardware wallet only kept in writing in your will
• Decoy wallet exported to a separate companion app than your main wallet with a small amount of funds
• Passphrase for the Decoy wallet leading to a medium amount of funds if the thief is clever

Can the setup get more p̶a̶r̶a̶n̶o̶i̶d̶ secure than this?