Does the master bedroom flat slope have any feng shui function?

When you say the bedroom floor is tilted, it shouldn't be very tilted. As long as it doesn't affect your daily life, Feng Shui is not a problem.

There are places around the bedroom, only the door is the entrance and exit of gas. Unless the indoor floor is inclined to the door, and the inclination is large, it will have an impact on the wealth of indoor people.