If earlier there was an attempted blitzkrieg and a plan to force Ukraine to surrender in a rush, then now a different approach is on the agenda.
I do not see any major changes in Russia’s strategy for this war. After all, the ultimate goal is to destroy Ukraine as a state. Changes have taken place in operational and tactical approaches to achieve this goal. The final prize is to set up a closed zone, a “belt” on the border between Russia and Ukraine, no matter how deep this zone is.