Of course they do. To China, Russia is a cheap mafia-owned gas station. It can no longer provide any real business opportunities thanks to sanctions; see how the Russian part of Belt and Road got shut down and everything moved south to Kazakhstan.
Long term, Russia used to be a strategic problem to China, as its huge, aggressive direct neighbor. This problem has now been solved, but helping Russia develop would risk it becoming a threat again in a generation or two.
Long term, Russia used to be a strategic problem to China, as its huge, aggressive direct neighbor. This problem has now been solved, but helping Russia develop would risk it becoming a threat again in a generation or two.