Touch pad two finger scrolling in menu almost impossible

OS: Ubuntu 20.04 (also on 18.04)
Arduino IDE 1.8.12 (also previous versions)
Touch pad with Synaptics driver

When a long list of boards have been installed, the Tools => Board menu becomes very long and scrollable. When using a touch pad with two finger scrolling, it is very difficult to scroll through this list as the start-of-scroll is detected as a tap. After this invalid tap the incorrect board is selected and the menu is closed. One then needs to open the menu again and try scrolling again and hopefully not trigger a tap.

If one disables two finger scrolling and change to right edge scrolling on the touch pad, these invalid left-click taps are much less common.


Start by reproducing the issue in Arduino IDE 1.8.12 on Ubuntu with a long Tools > Board list and a Synaptics touchpad using two-finger scrolling. Done means scrolling the board menu does not trigger an unintended tap, select the wrong board, or close the menu.

Written by the indexing model from the issue text.