That's what I mean though - that the districts themselves, once specialized, don't seem to produce the same amount of research as in a normal empire. In my anecdotal unscientific testing with cheats enabled and all tech researched, a fully upgraded tech-specialized world on a wilderness empire seems to produce a little over half the base science as the UNE doing the same thing.
It could also be related to the fact that I can't build a materials workshop for example on a wilderness empire's world, so had to just build normal research labs. As well as that only one lab can be upgraded to level 3 in a wilderness empire. I could be misunderstanding this, but several people have confirmed this happening for them in the discord. Please correct me if I've misunderstood something, I'm not too familiar with the mechanics on a deeper level.