As it seems like you’re seeing, what evolves depends a lot on what you’re selecting for and the environment they’re ‘growing’ in. This is another paper with more details. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7123229/pdf/978... My favorite stories are the ones where the organisms evolved to be able to detect when they were in the test environment and only performed the high-cost, selected-for behavior there.