OPPO has been rumored to launch its first ever tablet for some time. This device might have been projected to show up by the end of 2021; however, the latest word is that this event has been postponed until the following year. Meanwhile, the OEM has indicated that it is still committed to next-gen devices such as slideable or foldable phones.
https://www.notebookcheck.net/OPPO-pushes-the-launch-of-first-gen-tablet-back-to-2022-leaves-foldables-and-rollables-on-the-table.567740.0.html