Your link is from Yahoo, quoting a Ukrainian source.
I still use an old email account at Yahoo, so I check the site every day, and it always feeds me several links from Ukrainian news sources. Sources which are , of course, biased. The headlines are always upbeat and encouraging. Even when Mauripol was being destroyed, the headlines Yahoo displayed said things like “heroic fighting in Maruipol is slowing the Russians down.”
So I hope your link is true…but let’s see if some other international sources report the same thing.