Don’t need evidence to support a feeling.
It doesn’t make sense that they would only serve propaganda to right-wingers and tankies. Maybe they’re focusing them because it’s easier, but it wouldn’t make sense to only do it to approximately half the population when they can do it to the full spectrum.
Or maybe there’s evidence of the right wing because it was easier to catch.
We should all be critical of propaganda, if you think “ah, it’s the other guys that are getting all the propaganda”, you’ve just become an easier target.
It not being fully 3D doesn’t mean that it’s of lower quality.
For example when consoles got powerful enough to draw 3D backgrounds you could see a significant decline in background quality, since you can have a higher quality 2D background for a fraction of the resources.