At the moment, the Minecraft Launcher comes with smooth scroll force turned on, but does not provide any way to turn this off.
Because smooth scrolling causes dizziness for some people, the Minecraft launcher should have an option to turn this off.
I marked this as a bug, as the platform I'm using the most (Linux) has no smooth scrolling by default in its UI, and the minecraft launcher is breaking this UI pattern and accessibility at the same time
Our current launcher uses the default scroll behavior auto, which "jumps" elements and does not have a smooth transition. We removed smooth scrolling sometime last year. Let's hope you've been happy with the scroll since then!