As well it should be.
You don’t need Telegram. None of them know anything.
There is some raw information.
Russia drafts universally. 1 year of training of young men and then moved to the Reserves and sent home to civilian life. The total Reserves up to a top end of military age is 25 million.
Active duty people about 1.1 million. This is all in the Wiki from pre war with some immunity from recent propaganda.
The 1.1 million are spread across the country, as does the US with its armed forces. Russia also has people abroad in a modest blue water navy around the Pacific coast and submarines in the Atlantic, as well as troop presence in Syria.
Last September, Putin announced mobilization of 300K Reservists. That, plus some modest number of active duty troops are all that are allocated to Ukraine and its very long border of Donbas and the north, is all they have committed.
300K. Out of 25 million. They do not appear to be very serious, judging from the context of pure numbers. This could change at any time, of course. Putin is up for re-election in March.