Yes. The protocol of “how to surrender” would also be useful to add.
Obviously, one cannot surrender to an FPV drone - it doesn’t have enough battery for the pilot to check if one follows through with the promise.
Throwing down all weapons, raising a white cloth and walking towards the opposing side might be a good enough signal for the pilot however - they might go looking for another target before the battery runs out.
For the leaflet to achieve results, it must lay out a good method of how to surrender. And that’s a lot easier with Russians since they have a language which Ukrainians understand.
To Russians, one can write “go to frequency X MHz, drop encryption and negotiate surrender” or “go to Telegram channel X to arrange surrender” but no such hope with North Koreans.
I can confirm, it happened a few times in Kursk, I’ve seen the videos.
However, the drone in question was a reconnaisance drone (those have long flight times). Ideally, you never see a reconnaisance drone - it sees you from beyond visual range well enough.
I believe the situation in Kursk was that Ukrainians deliberately sent a reconnaisance drone to take a close look, and perhaps also dropped a few leaflets. Russians then understood that their coordinates were known, they had no shelter available and a strike might come any second - and made the gestures to indicate surrender.
It also helped that the Russians in question were conscripts - young people undergoing military training. Support for the war is the lowest among this age group.