If the dock at the bottom of your Mac is getting in your way when you try to do quick actions, like using a horizontal scroll-bar in a full-screen app, then you can use this CLI setting to bump up the delay to a few seconds.

I find 3 seconds is enough to get most things in that area of the screen done, but is also short enough that it using the dock on purpose isn’t too painful.

defaults write com.apple.Dock autohide-delay -float 3; killall Dock

I found this on stack overflow after digging around for a while -> https://superuser.com/a/406571.