There is no certainty as to the range but numerous Mil sites say UP TO 1000km. So you run a test and get back if you survive.
Russians build the best jammers and radars - so you take your chances.
I would say the Israeli Air Force has run a ton of tests.
Haven’t been shot down by S-500 missiles, and have actually taken out some sites.
I respect your opinion, but it isn’t fact.