Benzene hasn't been used in decades. See this for information about solvent decaffeination:

https://www.compoundchem.com/2018/09/26/coffee-decaffeinatio...

Earlier this year dichloromethane was banned in the US for all but a handful of uses, so producers who used it in the recent past will not be able to any more:

https://www.epa.gov/newsreleases/biden-harris-administration...