I think some of them are definitely funded by them, there was an article about it I saw: https://nationalinterest.org/blog/buzz/russia-funding-europe...

They fund other stuff that weakens and divides Europe too like the separatist movements in Scotland, Catalonia etc.

That's not to say that all the people in these movements are Russian agents or that these groups don't have some good points and legitimate grievances, but nonetheless they are an easy, cost-effective way for Russia to attack us.