“Clear” is a weasel word propagandists use when matters at hand are anything but. Please provide evidence.
As far as I can tell, the main aim was (and still is) to sow division, and the ads targeted the liberal side more simply because their rhetoric was more aggressive. They went as far as organizing BLM and “resist” protests.
Facebook’s disclosure shows that they (whoever “they” are this time — FB was unable to pin this on anybody) are still doing the exact same thing and rallying the radical left, and racial/ethnic minorities.