The display of selected letters of a retail user’s PayNow name only applies when you are a Payee and recipient of payments. This is one of the many measures adopted to help combat impersonation scams and to safeguard customer privacy for Payees.
As a Payer, your full account name will be shown in your Payee’s financial institution’s statement and transaction records. This is currently how it is displayed and there is no change. The display of full account names of Payers is a standard practice across major payment schemes and supports a broad set of business use cases that require validation of a Payer’s identity (e.g. brokerages that need to validate that investment funds came from a first party). It is also useful in cases of disputes and aid identification of potential scams or fraud where Payees can raise queries to their financial institutions on funds transferred into their accounts from unknown Payers.