OPPO, the world's fourth-largest smartphone manufacturer, is set to jump on the custom silicon bandwagon. According to Nikkei, OPPO will use TSMC's 3 nm process to develop custom SoCs for use in its 2023 or 2024 flagship.
https://www.notebookcheck.net/Oppo-may-be-developing-its-own-smartphone-silicon.574203.0.html