It’s hyperbolic, but yes, Ukraine is much more similar to Russia than to Western Europe.
Moscow and, especially, St. Petersburg are pretty European historically and culturally. Western Russia accounts for 77% of Russia's population and is predominately influenced by the culture of Moscow, St. Petersburg, and Kyiv...
Europe isn't just Italy, Spain, & France...
Not every European country is Western European culturally...
BTW, most Russians are European, living west of the Urals.
Ukraine is culturally, geographically and geopolitically a European nation.
But Russia is a gigantic country with a lot of population that isn't particularly European in any sense.
Ukraine on the other hand is basically 100% European any way you want to slice it beside Putin's revisionist history.