If you think the entire point was bridging Crimea then I’ve got another bridge you should have a look at.
And you appear to disagree, but to my mind the loss of a million men is certainly a valid way of measuring whether Russia is winning or not. Think the effect on their economy is another one that presumably you don’t think is especially important. Or their relations with their European neighbours. These are all ways that I would measure Russia’s success in this war, and am surprised that you view them as nugatory, given what you’ve posted.