I ended up jumping ship to AICP ROM(Android 12) and using Radioactive Kernel on that instead... And as a bonus ViPER4Android works!Radioactive works, but you should use version 2.0.5 because it's aligned with the November's version of CrDroid. If you flash the 2.0.5 with EXKM you should be able to maintain root.
If you like to use last Radioactive then you should wait for next CrDroid update for December.