France provides Ukraine with targeting information that allows Ukraine to strike deep inside Russia, including industrial targets. So France is directly contributing to attacks against non-military target in Russia, yes.

Source: https://www.kyivpost.com/post/81382

Not exactly "random thugs", but this comes to mind:

https://en.wikipedia.org/wiki/Sinking_of_the_Rainbow_Warrior

>The sinking of Rainbow Warrior, codenamed Opération Satanique, was an act of French state-terrorism carried out on 10 July 1985. The event was described by France as a "covert operation" by the "action" branch of the French foreign intelligence agency, the Directorate-General for External Security (DGSE). During the operation, two operatives (both French citizens) sank the flagship of the Greenpeace fleet, Rainbow Warrior, at the Port of Auckland on her way to a protest against a planned French nuclear test in Moruroa. Fernando Pereira, a photographer, drowned on the sinking ship.

If their foreign intelligence office hasn't made the kind of contacts and capabilities that could, they wouldn't be doing their jobs.

Low level sabotage under the guise of hooliganism wasn't invented in Leningrad.