>>507838557 (OP)My theory is that after their original blitzkreig failed to obtain the diplomatic effect they desired, they realized they weren't in a position to quickly win, so they began slow rolling the offensive. The point wasn't to defeat Ukraine, but to defeat NATO. And by all accounts, they've managed to do this.
So it's not just that they've been going slow, but that they decided to go slow in order to slowly bleed NATO. Which isn't to say Russia could have magically gone faster, but they could have, if they wanted to bleed a lot more, and take risks that could have put them in vulnerable positions that NATO could have exploited.
Along the way, drone warfare and other methods have made existing battlefield technologies obsolete. So we're not seeing dramatic movements of the various fronts.
I think the best way of thinking about this is that the war is really in logistics and manufacturing, and Ukraine has been gradually losing that battle. Eventually they'll have to give up. I expect that'll happen within the year, especially with Trump diverting all his attention to Iran.