For everyone who found this interesting, the research paper it originally came from us Bar-On et al (2018) and it's free to read here:
Interestingly, the biomass distribution on Earth is overwhelmingly terrestrial, because most biomass is plants and most plant biomass is trees (with some other woody biomass like shrubs and things).
After terrestrial, a big slice is deep subsurface, which is mostly microbes.
Marine biomass is a surprisingly small fraction considering how much of Earth is ocean. Most ocean life is apparently animals and protists.
Sunbeam City is a anticapitalist, antifascist solarpunk instance that is run collectively.