That is not the reason for what is happening here. Even with the lowest DLSS setting, it is able to produce okayish or good results on all 3D-objects and many of the cockpit textures, but some instruments are blurry as hell. There is a clear difference noticable in the archieved quality.
It is not the case that thats DLSSs fault. DLSS would normally work well with letters and all the contrasty symbols on instruments, but for some reason they are not affected by the upscaling at all. As this link suggests, a wrong resolution setting for the seperated instrument rendering is the most likely culprit.
We see the upscaling working well on all other surfaces and edges, so it is not the fault of “not enough info” in the resolution. Taking a look at other games shows how amazingly well DLSS normally performs with letters and symbols.
EDIT: Please consider voting for the item above. Rendering the instruments with the desired post-process resolution and not the lowest render resolution seems to be the key to solving this problem.