Did you read the report that you posted? Russia is not losing, they are behind, and probably planned poorly/underestimated the fighting but unless things drastically change with NATO, they will cut off large parts of ukrainian defenses and eventually take the population centers. Its crazy I want Ukraine to hold out, I want Ukraine to drive them out, and if you look at reddit, and some twitter accounts you might even think Ukraine is winning, but I don't think thats whats happening.