As a matter of fact and Very much

As a matter of fact adverb - In reality or actuality.

Very much and as a matter of fact are semantically related. In some cases you can use "Very much" instead an adverb phrase "As a matter of fact".

Very much adverb - To a very great degree or extent.

As a matter of fact and very much are semantically related. Sometimes you can use "As a matter of fact" instead an adverb phrase "Very much".