Thanks @blockstream_official. With all of the shenanigans about Ledger trying to destroy their business (I know a few people who are jumping ship because of the 'Recovery' thing), it is worth remembering there are great Bitcoin-only products out there like the Jade!

I guess the big value prop is that people may have more than just "one cold storage wallet", whether it is a hot wallet on a phone, a second or third cold storage system, etc.

The BIP85 recovery phrase is the master seed phrase that all the others seed phrases can be made from. This means you no longer need to rely on the entropy and seed generation of the various wallets you are using.

Every wallet you ever use can be generated from this master seed, improving security and seed management. Individual seeds are not linked to each other and can be reproduced deterministically! In the worst case, you can reproduce a given seedphrase from the master seed!

That is all I have got :)