Oppo's Android 10 fork is here in the form of ColorOS 7. It brings forth a host of cosmetic and performance improvements and will be available to eligible devices starting November 25th.
https://www.notebookcheck.net/OPPO-unveils-ColorOS-7-based-on-Android-10.443334.0.html
Damn I'd expect them to prioritize adding an Always On Display feature that works with all third party apps above all else since you know, you use your phone for communication and with the notification LED gone, this experience has seen a major downgrade in functionality.