I’ve X98 Pro and X16 Plus. I bought X98 Pro with both OS (Windows + Android). But Android on X98 Pro is too unstable. Then, I removed the Android and keep just the Windows. After that I bought the X16 Plus just to use the Android.
As said, Android is unstable and although is a more convenient OS for a tablet, it has a lot of things and problems with both stock ROM and latest mirek ROMs.
Windows however runs fine, although I don’t feel comfortable with it and it wastes more battery than Android.
On the other side, however, X98 plus runs both Android and Windows without problems and battery last for up to 8 hours but it’s worse for gaming.