I can confirm that these were not Russian but Ukrainian losses.
Firstly, none of the trucks or tanks show any Z or V marking. If Ukraine wanted to remove any doubt that these were Russian losses, they would have shown clear pics with Russian markings.
Secondly, one of the pictures show what appears to be a burnt out big tank workshop. Now why would Russia bring an entire tank workshop to a river crossing? This was a Ukrainian tank workshop located in a Ukrainian tank base.
Thirdly, the report says this took place on 8 May, one day before Russian Victory Day. If this was truly Russian losses, Ukraine would have splashed it all over the headlines on V Day to humiliate Russia. But this came out only 3 days later.
Fourth, one would expect the Ukrainian government to claim credit for such a PR victory, which usually is the case. But it did not.
Last but not least, Ukrainian sources have a history of lying. Fictitious Ghost of Kyiv. Staged Pregnant girl in hospital. Fake "Russian losses" on Snake Island (twice).