Oh, that I'm not sure of. I misunderstood what you were asking, sorry about that
While I don't know about actual jets launching munitions over Russian airspace, Ukraine did successfully hit a Shahed drone factory over 1,000 km from the Russia-Ukraine border with what appears to have been one of these light aircraft converted to be unmanned. So Russia's air defence is definitely not impenetrable.
Courtesy of /u/idiot206's sleuthing work when this was posted to reddit a couple years back, it's a modded Mac SE
https://www.cultofmac.com/229732/this-13-pound-vintage-mac-laptop-was-killed-by-the-sony-walkman/