That would be fantastic.

BIP85 is an option more Bitcoiners should discover.

Here's how I use it:

I created a parent seed.  I never use this seed as a wallet.  I've backed it up, backed it up, backed it uuuuup.

I use 24 word child seeds as my actual "seeds."  Encrypted, thanks to Krux.

I use 12 word child seeds as passphrases for my wallets.  There are many benefits of using a child seed as a passphrase: It's impossible to have a typo since the seed has a checksum.  It's easy to load since Krux does Passphrase QR.  It's incredibly secure.  They're encrypted, thanks to Krux (this requires using 2 Krux devices though: one to decrypt the seed phrase and another to decrypt the passphrase, which the first then scans as a plaintext QR, but it's easy to use and it's worth it).  And they can be easily loaded in other wallets too.  Blockstream Jade has a feature that makes using BIP39 words for a passphrase easier to enter (not easier than passphrase QR though!).

I use a 12 word child seed as a decryption key.

Because my seeds & passphrases, and their decryption key are all child seeds, if any of them is ever lost, it can easily be regenerated by the parent seed.

EASY.

I name my wallets with a simple system that tells me the BIP85 child seed index numbers.

I realize some people will read this and think "Yikes!  That's complicated!"  It's really not.

Krux A:  Scan the encrypted 24 word seed QR.  Scan the decryption key.
Krux B:  Scan the encrypted 12 word passphrase QR.  Scan the decryption key.
Krux A:  Scan the plaintext passphrase QR on Krux B.
Done.

It takes less time to load a wallet this way than it takes to enter the PIN to unlock a ColdCard.

Airgapped: Unhackable.
Stateless:  Nothin' on it, if stolen.
Encrypted Seed QR:  Unhackable if stolen.
Encrypted Passphrase QR:  Unhackable if stolen.

And if anything is ever lost...  a seed, a passphrase, even the decryption key...  if anything is ever lost, it can easily be regenerated by the parent seed (which is backed up on paper and metal & the metal copy is locked in a safe deposit box).

And it anything is ever stolen...  the devices are irrelevant since they contain no data...  the seeds and passphrases are useless since they're encrypted...  and the parent seed & the decryption key look like seeds for wallets that have never been used.

I don't think security gets much better than this for a long term hodl wallet, and Krux makes it easy.  Everything is backed up, plus a backup of the backups that can regenerate everything.