I am a licensed mechanic.
From what you described, sounds like front and/or rear stabilizer linkage seizing up or loose.
When you slowly braking at the end, and the car very close to a full stop, will the noise come out again? If so, does the sounds continuously on or just sounds once only.
Or one more way to diagnose the problem, open the hood and push down the car, does the sound come out? and open the trunk, push down the car, does the sound come out?
Until I drive the car, and if the sound appears as described checkup. You should change the links.
Keep it post here or QQH.