You need your seed backed up more than once.
In one location:
Steel plate engraved + paper/card laminated
-> the paper card should be both written out words & SeedQR if you're using a SeedSigner or another QR based signing device
Second location:
Center punched steel backup, could be Steel SeedQR or classic versions with alphabet grid + paper/card laminated.
-> the paper card should be both written out words & SeedQR if you're using a SeedSigner or another QR based signing device
These two locations create a viable backup for your wealth.
If you only do this with one location you have a single point of failure.
In each location you should have steel and laminated paper for recoverability UX.
If you execute a 3of3 this will great.
If you execute this with singlesig you'll need to have a 3rd and maybe even 4th location to store your passphrase so inheritance can be done properly.
In other words, just setup a 3of3.
