It’s just grass with pesticides.
I take care of about two acres of lawns across a few properties for a few decades. I’ve never put pesticides on the lawns. Herbicides, sure, sometimes lots of herbicides, but all very much plant specific. I suppose some places must use pesticides, but here in the middle of the US grass just sort of uses sun, water, nitrogen, and some other stuff and grows.
Also the sentence attributing Illinois prairie loss to global warming is hogwash. Global warming didn’t turn the prairies into giant farms.
So, grumpy stuff said, I do keep lots of varied native plants too. Grass is just for the area that want to survive occasional foot traffic and be open to show something else.