Putin life's work is bringing some imagined Russian glory back. But that's the exact mentality that brought suffering on the Russians through the ages. Be it a Tzarist Russia, a communist Russia or a putinist Russia. The common Russian was always sacrificed for some imagined Russian glory.
It's amazing that you can brush away the fact that Putin murders politicians activists and journalist who expose his corruption, and you still think he is genuine. Remember that he denied that he is going to invade ukrain multiple times just before he invaded? The only truth Putin recognizes is power. He will use half truths to manipulate, control and assert his dominance. Compare for example the western rhetoric blaming the war on Putin while acknowledging the common Russian as a victim. Putin's rhetoric OTOH is generalizing the enemy as some fictive "westerner" conglomerate coming after russia. This sort of demagogy is a tool to prepare a people for bloodshed and war, not for peace.