A user over on the XDA forums spotted a mention of the TWS OnePlus Buds in code for the Android 11 Settings APK, lending credence to rumors that OnePlus will soon be releasing its own pair of TWS earphones.
https://www.notebookcheck.net/OnePlus-Buds-mentioned-in-Android-11-beta-code-company-s-first-TWS-earphones-set-to-compete-with-AirPods-and-Galaxy-Buds.470218.0.html