Q1. What is the problem that you are trying to solve?
There are situations where random strings are not convenient, for example if you have to type them on a physical server, or a web console where you can’t paste ( as vsphere web console). Random strings are great for machines but users are bound to make mistakes when copying them.
Q2 - Who is impacted?
Mostly sysadmins and any other users that have to type the password.
Q3 - Why is it important and/or urgent?
For those like me who use this kind of interfaces a lot in our daily jobs, passbolt would make our life easier.
Q4 - What is your proposed solution? (optional)
Similar to keepass or bitwarden, in the password generator window there can be a tab or a check button to choose passphrase generation.
There is the BIP39 specification, I think this exceeds my needs but it provides a nice word lists in some languages.