I only discussed Kant a little, for example "Critik der reinen Vernunft".
I am a scientist and engineer, not a philosopher. Therefore, I think more about the problems of the real existence of several participants in the same environment, for example: humans and polar bears, viruses and humans, orchids and fungi, coal-fired power plants and the Greta-Thunberg generation, fungi and bacteria, Hakone in this forum etc. and a combination of all of that.