Currently FedNow is simply a push payment system i.e. bank account holder may be able to use FedNow to push money out from their bank account to someone else's bank account.
The limitation here is the bank account holder must know the account number of the recipient. This is a huge limiter in adoption since most people don't want to share their bank account numbers and maintaining a directory of people's bank account numbers is cumbersome to say the least
Yes, the Fed is working on a directory but they have not yet announced the launch date for such a directory, not have they mentioned the index i.e. will it be phone number ? email ? something else ?
Bottom line: FedNow launch: Step in the right direction but still a long way to go