Self-explanatory. Option for Envoy to create a 24 word phrase rather than only a 12 word phrase. Sure, I could use an external wallet to create a 24 word phrase and recover it — but it’s more convenient for the app to support it natively.
Note that this is in reference to the Envoy hot wallet in-app.
In my opinion there is the possibility that as computing get better/faster, 12 word seed phrases would be able to be brute forced faster/before 24 word seed phrases. Even if this is 50 years away — If we assume that theoretical moment (where 12 words could be brute forced) would come before the ability for computers to be fast enough to break/reverse engineer public keys, 12 words would be first to be compromised before 24 words.
I’m not saying that this needs to be the standard within the wallet, but I think it should be available under additional/advanced options. I personally don’t use 12 word seeds except in a few instances (such as for legacy wallets). I prefer the wasted entropy, but maybe it’s just me.