Russia might be considering boycotting Telegram for fear of leakage of sensitive information to the West. Telegram has been Russia's military main communication channel in the Ukrainian war. Authorities in Russia are concerned that the detention of Pavel Durov might give the West access to some sensitive security information.
Durov was released from custody after some time, but with the obligation not to leave France. Most likely, he made some kind of agreement with the French government. Of course, Durov knows a lot. The news discusses whether he was a Russian agent, since he often came to Moscow and enjoyed certain privileges.
Indeed, the Russian military actively used telegrams during military operations in Ukraine. Now the Kremlin cannot be sure that their secret correspondence will remain secret. In such cases, it can be said that Durov himself is under threat of being eliminated by the Kremlin.