Aromal, as I am op3t developer, I have to say that op3 and op3t have been merged into a single device, by lineage.
You have to wait as now one plus is following sources of lineage and oneplus is not willing to share their proprietary camera libraries to open source community. If they gave we could do better. But as we don't have the camera lib source. We are doing trial and error method to make the ultimate device tree.
If op is continuing to follow lineage. When lineages sources are better, op's updates will be better.