Russia flying using AZAZ0909 callsign, hmm.
PFs were all over various US jets using that callsign.
Very strange. Ruskie command post using US exec plane callsign.
There's a bunch of NATO exercises going on at the moment. Peak training season.
https://www.nato.int/nato_static_fl2014/assets/pdf/2021/3/pdf/2103-factsheet_exercises.pdf
Agree, Russian AF seldom shows up on ADSB unless they are in or near western airspace and then it is generally transports.