The Cheka-OGPU and Rucriminal.info asked their sources to ride the Moscow metro and record the behavior of apps and other basic internet resources. Spoiler alert: the authorities overreacted so much that they even jammed MAX in some places.
Despite claims by some State Duma members that Telegram was being completely blocked, the messenger worked even without a VPN from Nagatinskaya metro station to the city center. Not to mention other apps.
Serious blockages began closer to the center, appearing near the Serpukhovskaya metro station. There, the Apple Find My app crashed immediately. Telegram was unstable even with a paid VPN service connected.
At the same time and in the same location, apps and websites from the "whitelist" worked without interruption. For example, Wildberries, banking clients of Sberbank, T-Bank, Gosuslugi, and state media websites. Essentially, a "sovereign internet" was already in effect there.
In the areas around the Borovitskaya and Arbatskaya stations (where Defense Ministry structures and government agencies are concentrated), there were issues not only with the internet (the LTE signal switched to 3G and E), but also with GSM voice communications. In some places, even authorized apps were impossible to download, even with a VPN connected.
The funniest thing is that in the Patriarch's Ponds area, not only the aforementioned apps but also the government messenger failed to work. MAX, which, according to its creators, should work even underground, simply refused to turn on.
