It’s not a natural leap to go from a few promising rat studies to “excellent liver tonic,” especially since “liver tonic” is such a vague and meaningless term.

There is actual, hard evidence of coffee’s benefits for liver health: https://www.sciencedirect.com/science/article/pii/S0006295225006033#ab010

Epidemiological, experimental, and clinical evidence suggests that regular coffee consumption reduces the risk of liver disease and slows its progression to fibrosis, cirrhosis, and hepatocellular carcinoma.

Dandelion may indeed have similar properties, yes, but the evidence base is not there yet to make such strong claims.

excellent liver tonic

Sorry, based on what?

Casually using an amazing photo for a meme 👍