Hello community !!!

I am very new to Qt5, just 3 days programming with it, but i have been programming for many years. The thing is that i have a question related to form controls, i have a monitor with a resolution of 1920 x 1080 if i develop the form controls and layout here, when i deploy the application in lower or bigger screens how the controls adapt? Just curious, because it will be my first application in Qt5. Thank you in advance !!