Telegram has overtaken WhatsApp to become Russia’s most popular messaging tool, the mobile operator Megafon said on Monday, with Russians flocking to the service as Moscow restricts some digital services. WhatsApp owner Meta Platforms Inc. is embroiled in a Russian court case, with prosecutors seeking to label it an “extremist organisation”, and authorities have actively promoted Telegram as they have banned other foreign platforms such as Facebook, Instagram and Twitter. Russia’s military operation in Ukraine has added fuel to a simmering dispute between foreign digital platforms and Moscow. Megafon, one of Russia’s four main telecoms operators, said its analysis of mobile internet traffic showed that Telegram’s share had jumped to 63 percent in the first two weeks of March from 48 percent in the first two weeks of February. WhatsApp’s share dropped to 32 percent from 48 percent, Megafon said. The average Telegram user consumed 101 MB of data a …