There is not a scintilla of evidence for this.
They're trying to keep the same violent and aggressive American dominated military alliance that is currently and actively trying to destroy Iran far away from their most vulnerable border.
They also tried to pursue the diplomatic route multiple times before invading and after invading and were always rebuffed.
That entire war is a massive, futile attempt to revive their glorious imperial days by annexing lands that they consider their alienated property. Fuck them and their bombs and their disgusting oscillations between paranoia and megalomania.
Contemporary Russia has fewer people than Pakistan and a smaller economy than Italy. It has no business playing a "mighty superpower" role anymore, but it ignored that reality (Putin is very much a person of the past, as is his inner circle of post-Soviet siloviks in their 60s and 70s) ... and it is learning the hard way.
The best possible outcome of this war from Kremlin's point of view is that they will become a de-facto resource colony for China, somewhat benevolently managed by actually competent people.