It seems that some parts of the Surgut [longwave] transmitter were removed:
According to the Google Earth pictures from 2021/08 and 2020/09 some buildings were demolished, the feeder lines to the 2 antennas (1 ARRT antenna and a normal ground plane) were removed, 2 of the 4 cooling ponds were removed and a long antenna (from north to south, maybe a directional MW antenna?) was removed.
61°23’32.74″N 72°53’22.30″E

Marco (2021-11-21)