What they want is the gas that was going to be produced in Ukraine in 2013, a year before they invaded. They also took resource rich areas.
The proof for this is easy. Russia clearly stated they have no problem with Finland joining NATO. A border of 1340 km and Finland has one of the strongest army's in Europe.
https://www.politico.eu/article/putin-russia-no-problem-finl...
https://www.reuters.com/world/europe/what-can-finlands-armed...
What he originally wanted to keep, is resource dominance over Europe ( eg. Gas) as leverage.
And that's why a half a million Russians are dead.
Nah, before Finland (and Sweden) joined they issued multiple threats.
Here's what they did when they actually joined: https://www.reuters.com/world/europe/what-can-finlands-armed...
( As mentioned before)
Treating anything Russia says as proof of their intentions is pure ignorance given their long track record of empty threats, lies and flip-flopping.