From the website
The OnePlus Nord comes pre-installed with OxygenOS 10.5, complete with all the features you were expecting, like Dark Theme, gesture navigations and Zen Mode.
6.44” Fluid AMOLED display
48+8+5+2MP rear camera, 32+8MP front camera
8GB RAM and 128GB internal storage
Qualcomm Snapdragon 765G, octa-core processor
OxygenOS v10.0 (based on Android v10 (Q)) operating system