Extrapolating from Russia’s invasion of Ukraine: What lessons could China be drawing from it for its reunification ambitions?

Amidst Russia’s invasion of Ukraine, some have drawn parallels between the current war and antagonistic China-Taiwan relations. Given the association of current developments with Taiwan’s predicament, this begs the question of what lessons China is drawing from the war and how this may impact its designs for Taiwan.
Photo source: https://www.nytimes.com/2021/10/09/world/asia/united-states-china-taiwan.html