this is one of the most common misconceptions. Many assume that lab grown meat involves some sort of plant based input, the use of insects, or novel chemicals.

Here is how it actually works: https://new-harvest.org/what-is-cellular-agriculture/

TLDR: cells are taken from a real animal, and put in a bioreactor tank (similar to brewing beer) with culture media to feed the cells and have them replicate in the same molecular chemical reactions that would occur within an animal.