It's on record that Russian and Chinese propaganda campaigns in the US were aimed at sowing division generally, more so than any particular viewpoint.
For example, just one that turned up at the top of a quick Google search
> And the analysis shows that everyone from the former president, Dmitry Medvedev, as well as military bloggers, lifestyle influencers and bots, as you mentioned, are all pushing this narrative that the U.S. is on the brink of civil war and thus Texas should secede from the United States, and that Russia will be there to support this.
https://www.kut.org/texasstandard/2024-02-14/russian-propaga...