Perhaps it is a story.
F0402/22 NOTAMR F0400/22
A) CZVR CZEG B) 2202271638 C) 2205251600EST
E) ALL AIRCRAFT OWNED, CHARTERED OR OPERATED OR OTHERWISE CONTROLED (sic)
BY A PERSON CONNECTED WITH RUSSIA, OR WHICH IS REGISTERED IN
RUSSIA, AND ALL OPERATORS HOLDING AN AIR OPERATOR CERTIFICATE
(AOC) ISSUED BY THE RUSSIAN FEDERATION AUTHORITIES ARE
PROHIBITED TO ENTER, EXIT OR OVERFLY CANADA'S AIRSPACE.