Following the announcement that OnePlus is completely merging its operations within Oppo, a leaked memo has shed more light on how the arrangement will work. While the merger will still produce OnePlus-branded phones, the company is now a sub-brand within the larger Oppo structure.
https://www.notebookcheck.net/OnePlus-to-be-reduced-to-a-sub-brand-under-the-Oppo-umbrella-OxygenOS-could-be-in-need-of-resucitation.546894.0.html