No resistance? They sieged Chernihiv from February 25-March 31.
You count Bakhmut as a Russian victory? Nobody won Bakhmut, Russian expended a massive ammout of manpower and resources for nothing. The front didn’t change in any meaningful way, hell the fact they are struggled so much to reclaim a town they captured in 2014 should tell you how bad things are for Russia. Seriously dude they drafted 300,000 and still the only way they made progress was by throwing prisoners at it.
Also spoiler alert they have been on the offensive this entire time. The only competent people have been removed from power. The one to order defensive lines made and mines laid backed Pringlez. Pringlez is also gone now so yeah I don’t really see this offensive playing out any way.