When you click on the shaft of the scroll bar, it doesn't go down/up by a page, but by more than a page.
This only happens when "Enable scrolling" in disabled in the toolbar.

Steps to reproduce: Disable "Enable scrolling" in the page navigation toolbar. Click with the mouse left button on the scroll bar shaft region to scroll one page up or down.

Environment: Windows 10 Pro. Acrobat Reader Continuous Release | Version 2024.005.20320 | 64-bit

Expected behavior: Scrolling one page up or down.

Observed behavior: Scrolling more than one page up or down.