Just how much damage did Ukraine do in its 'Spiderweb' drone attack on Russia?

As the jet-fuel smoke and aircraft debris clear following Ukraine’s audacious drone attack on Russian airfields, Kyiv and Moscow have launched into a propaganda war about the extent of the damage. While Russian claims that none of its planes were destroyed are demonstrably false, there are also questions around Ukraine’s own triumphant account of the success of its “Spiderweb” operation .