Short deck (6+ hold'em) removes 2–5. Hand rankings often change: flush can beat full house depending on the room — confirm before you stack off.
If flushes beat full houses at your table, a flush is a monster; a full house is strong but not the same king. If the opposite, invert your fear. The ladder is the law.
Ask the dealer once. Play accordingly all night. Don't rediscover the rule in a $400 pot.