Google is allowing users to change their Gmail address, per official Google support doc — experimental @gmail feature rolling out in India first, no official announcement yet

Source: Tom’s Hardware

Gmail address change feature

Google is finally adding a much‑awaited feature to Gmail, allowing users to change their old @gmail.com addresses without needing to create a new account. After switching to a new Gmail address, users will receive emails on both addresses, and all existing data will remain intact.