The verb spread in poker means to run and manage a game of poker. Card rooms are said to "spread" the games they offer, but only when the games are actually running.
If a card room offers an interest list for Omaha/8, for example, they are generally not said to be spreading it until the game actually starts - they are only offering it. Once the game starts, it is then being spread.
Generally, home games are not usually described as being "spread", though it would not be technically incorrect.