Now, though? I'm thinking the attritional battles like Bakhmut are the nature of the game. If no one is doing a big push, then this could lead to a frozen conflict that just exists for as long as anyone cares to notice. Or Ukraine pushes, breaks the front, and manages to rout a lot of the invading forces. There's some mumblings about Russia wanting this, to absorb it, then counter with another offensive now the weather is better. I don't know what to make of that given it seemed that their forces were exhausted.
As Clausewitz taught us, you have three strategic resources in war: time, force (aka combat power), and space. Ukraine hung on for so long in Bahkmut to buy time to absorb Western equipment and train new brigades to use it offensively. They traded force for time. The fact that they've pulled back from Bahkmut tells me they don't need additional time.
The Russians have been sacrificing force to retain space, so they have simply been playing defense, other than the propaganda-driven campaign to take Bahkmut. And the reason they chose Bahkmut is because it was very easy for them to supply. And Wagner is better trained, equipped, and led than the Russian Army units they have available. Wagner has now retreated from Bahkmut. Russian logistics were never organized to operate on a large scale outside of Russia. That's another reason why the drive on Kyiv failed. They only brought a few days worth of supplies.
I don't think the Russians want the Ukrainian counterattack. They will probably lose their ground supply lines to Crimea and their forces remaining in Kherson oblast. That's a disaster no matter how you dress it up. They will be giving up space for no benefit in time or force. The idea that they have force available to mount a summer offensive is pretty bonkers. If they had force, they'd be using it.
And the force they have now is qualitatively different than it was at the start of the war. Russia's professional army was okay. Not great for many reasons, but okay. Units made up of the recently mobilized are substantially less effective. They couldn't properly train them, as the officers and noncoms that did basic training were put into combat units last year.
There are only so many months of suitable weather for offensive warfare ahead of us. It's going to be an exciting spring and summer.