Shoigu lies about everything so it was doubtful he was telling the truth about mobilisation numbers to start with. The mobilisation bill had a censored part for the public version which Kremlin insiders say says they are mobilising 1 million men.
https://mobile.twitter.com/tadeuszgi...phSwJhMp4BjOHA
Russia can't train 300k let alone 1 million. They have just 1 training facility in the entire country. The US has 10 and trains 150k a year.
So looks like Putin aims to go all Zapp Branigan and throw endless waves of untrained men at Ukraine in a desperate attempt to break them.