Previously, on older Ubuntu releases with Unity I could manually set the "Launcher Reveal Pressure" to increase or decrease the sensitivity to unhide the Unity Launcher when it's hidden using the CompizConfig Settings Manager (refer to this answer).
How can I do the same with Ubuntu Dock on newer Ubuntu releases with GNOME 3?
Firstly, the "require pressure to unhide the dock" feature needs to be activated if it's not already. To do that, launch Terminal and run the following command
Then run the following command to set the pressure sensitivity
In place of
<YOUR-VALUE>
use a numerical value of your choice, keeping in the mind that the default value is100
.