What's sad is up to two months ago there were UN observers in the area, publishing all their observations daily in an open public online database. If one so chooses, one can read up on the intensified shelling of the Donbass regions leading up to Russias intervention. Took me seconds to find the first time. Up to 1000 artillery explosions per day counted by international observers and published online. Go on. We're in the information age, with all that information available to us, yet no one seems to know anything concrete or where to find it. Why is that?
As for literal Russian Nazis: https://twitter.com/kamilkazani/status/1572972414451027970 for just one example.
I did some light digging with the information you provided. The source is not an "independent researched", but a member of a Washington based think tank "The Woodrow Wilson Center". Literally everything he wrote in the past years was slandering Russia. Where did you think the gigantic budget of the CIA went?
The proof you provided is a telegram screenshot. You want me to make one that reads "Russian troops offering lollipops to Ukranian POWs"? Should take the average ycombinator reader minutes to whip up such a picture. You should know better.
It's not 2014 any more...