I think it's much more likely this is an attempt to balance France's own ties with China to protect its substantial business interests inside China. As much as I would like to think China supports the Palestinians cause to this degree, I think it would take a lot more than this to get China to flip on two decades of its core Russia policy.

Anyone with eyes can see that the US definitely intends to come after China after Russia is "dealt with". It would take a lot of concessions to get China to throw aside its only major ally.