LineageOS is officially accessible for a lots of devices including OnePlus 7 Pro and OnePlus 6T. While the 6T and different OnePlus devices are officially upheld by LineageOS, the OnePlus 7 has been getting only the unofficial LineageOS builds for quite some time.
LineageOS has now officially started supporting the OnePlus 7. The OnePlus 7 will likewise be getting the official LineageOS builds.
They will be accessible on the official LineageOS website for downloads. You can proceed to look at them at the present time.
You can download the official LineageOS builds for the device and flash it at the present time. Enjoy all the features from the official LineageOS that you have been hanging tight for. Go ahead and check it out.