In the scenario of a Russian withdrawal after extensive but not fatal attrition they'd probably have to give something up. From what I've heard the Russians can't politically stand to lose Crimea, at the very least.
Is is possible they're maintaining secondary offensives in the hopes that Russia will bungle one of them, like we've seen happen before?
I think the idea is that Russia will withdraw to more defensible positions and then the scenario is going to play out all over again. Russia withdrawing from somewhere, after all, doesn't mean that Ukraine has to stop pressuring.
And it's Putin who can't afford to lose Crimea. It has a special symbolic place in the Russian imperial narrative, sure, but giving it up might also be a welcome symbol in a turn away from imperialism. Maybe even nationalists will adopt that kind of stance, "Better lose Crimea than Siberia" kind of thinking. But all that's very speculative, it could go a gazillion of ways and I doubt Ukraine cares terribly much in the present moment where exactly the chips will fall.
No, I think outright resolution is the goal here. There's no reason to cede territory if they don't have to and aren't guaranteed peace; Ukraine is a big flat place with very little in the way of naturally defensible areas.
but giving it up might also be a welcome symbol in a turn away from imperialism.
Sorry to contradict you again, but nobody (significant) really wants to turn away from imperialism at this point. Navalny just wants a different imperialism, яблоко (the liberal, pro-Western party) is fairly irrelevant.
Yes, we used to call it the devil's choice or Sophie's choice. If you can maintain pressure on multiple locations while your enemy struggles then they will be forced to give up some places as they prioritize their defenses. It's also why offense is generally seen as better war fighting than defense. If I can get you reacting to me then all I have to do is wait for you to react wrongly or take some bait I left out. Then I can apply a massive amount of pressure to a small area of the front line.
This has already happened multiple times and the only reason the Ukrainians are only making limited headway is the extra deep minefields that can't be breached quickly.
One way this could play out is if Finland and Japan suddenly exercise their rights to conflicted territory. Russia as a whole will realize they are weak everywhere but Ukraine, and have to pick their losses. I don’t see it happening but it would be delightful.
Finland will not take any action that would draw us into a war. The lost Karelia is defiled and would require decades and tens of billions to restore. We've made our peace with the loss, but we will not forget what was stolen from us.
But if Russia wants to try something with us, they can try. We've had 79 years to prepare for this and we have plenty of wonderful surprises lined up for such an occasion. NATO aid or not, we are not to be toyed with. And they know it.