Have to wonder why Ukraine hasn’t taken the war to Russia before this. Passively playing defense isn’t going to end Russia’s aggressive invasion and destruction of Ukraine.
Mainly because they lack the offensive capability to do so. Plus they pretty much have their plates full just defending the homeland.
Bringing the war to the Russian population is a bit of a gamble. On one hand it could make the people mad enough to cause Putin to pull out of Ukraine. It’s not exactly a popular war with many military aged men leaving the country to avoid the draft. On the other hand the populace could get behind Putin and inspire more to join the fight. Could go either way.