Solidarité avec l'Ukraine 🇺🇦

It looks rather authentic. The resolution is good enough to see some Ukrainian flags here and there, and they do not seem photoshopped (look at the large flag, middle of the bridge). It's winter, so the trees in front of the glass building next to the water are leafless. This is an interesting point of distinction with other photos from the "Greta Thunberg" event at the same location in 2019 that also had many participants and look very similar to this one. Unfortunately we did not find any German newspapers to report this event with pictures from the exact same angle. At this point we have no more information. https://www.vice.com/fr/article/ae7dq8/utiliser-des-excrements-humains-comme-engrais-est-une-tres-mauvaise-idee