They oppose NATO membership, and are parroting the Russian talking point that the Ukraine invasion was the west’s fault.
While they might not be explicitly supporting Russia (which would be political suicide tbh), some of their talking points sure do align quite nicely with Russia.
I personally find them more dangerous than alt right at this point in time.
It sounds like you're looking for a hard link, like the one between the far right and china/russia. There is none, as far as I am aware.
The fact they aligned their views about NATO and the Ukraine invasion with Russia (the "NATO threatened Russia, so they had no choice" narrative you also mentioned), and their general affection towards the USSR is more what I was getting at. To me, that's sufficient to be considered pro-russian.
As to why I called them "more dangerous" (not "worse", I agree that the far rights ideas are considerably worse) - It's a couple of things. I feel they are more competent in general than the right. They're also more idealistic and consistent.
Those by themselves are not dangerous traits, but I also question how far that affection towards the USSR and China goes.
While I actually agree with much of their points, I'm just not that sure how much of the USSR/China they'd actually like to replicate. Regardless of that, I believe they would be fairly successful in implementing much of it - hence why I think they are more dangerous.