I degrease with a rag.

Even if you simply must use refined petroleum products to be happy and fulfilled please do the heavy work simplest way possible. Start with the rag. And be safe. Petroleum products are almost all flammable and some very much so. A few petroleum products (mineral oil, paraffin) are reasonably innocuous, the majority are highly toxic. The majority are problematic to store and problematic to dispose of.

How much grease is on a bike anyway? How many square millimeters to clean? Which parts need to be spotless before re-lubricating? How long do they stay spotless? Can you even complete re-assembly without a little contamination here and there?