Think that lift is just the result of pushing air in some direction: downwards for wings or rotors, rearwards for propellers, or in any suitable direction for compressor stages. Anything that moves air in any proportion or direction creates a force in reaction and tends to be moved in the opposite direction, and it moves unless the force is not sufficient.
Doing that is often not so easy, because in addition of creating this force, let's name it lift, the process also creates unwanted effects, collectively named drag. Drag has numerous negative aspects: it increases fuel consumption and often reduces lift created.
Anybody can create a device which generates lift, but the role of the aerospace engineer is to increase lift while decreasing drag, and to take into account the technical feasibility, and the limits of materials.
The design will also try to minimize the fuel quantity required to produce the lift.
During this optimization the shape of the device is carefully selected and adjusted, based on result of previously performed tests, and new ones. This leads to different shapes according to conditions of lift creation: desired amount of lift, energy available for this creation, permitted volume and weight, speed of surrounding air, temperature, etc. This is a reason why a compressor blade is not shaped like a helicopter rotor blade, or B737 vertical stabilizer.
Curiosity and insistence are good drivers, but they need to be guided by some methodology, else you get exhausted soon. What you may lack is a general overview of aerodynamics. Asking isolated questions is valid, but not the most efficient way.
To understand the all aspects you need to dig into the engineer manuals or at least into good vulgarization books. There are many online for free.
By the way lift, whatever the name is used (e.g. thrust for an engine and propulsive power for a propeller), is really any force created by moving air, so when you open a door you create unwanted lift and vortex without knowing.