That is correct!

Plants have the largest share of biomass at 82.4%. If only the animal biomass is taken into account, arthropods have by far the largest share at 42%. This emphasises the importance of arthropods, especially as a food source for many other animals.

Source:

Ritchie,H. (2019): Humans make up just 0.01% of Earth's life - what's the rest?

At: https://ourworldindata.org/life-on-earth#humans-account-for-just-0-01-of-biomass (last accessed on 09.05.2023)

According to: Bar-On YM, Phillips R, Milo R. (2018): The biomass distribution on Earth. Proc Natl Acad Sci U S A.;115(25):6506-6511. doi: 10.1073/pnas.1711842115

https://pubmed.ncbi.nlm.nih.gov/29784790/