Fedora has tap to click disabled by default (WHY?!). This has been a problem for me since AGES when using XFCE and similar environments that do not enable touch tap by default. I spent hours searching how to fix it and today I found the solution here! In short, you should create a file in /etc/X11/xorg.conf.d/ (create that directory if it doesn’t exist) and call it, for example, 10-synaptic-tap.conf. The file should contain something like:
Section "InputClass" Identifier "tap-by-default" MatchIsTouchpad "on" Option "TapButton1" "1" EndSection
You can also add more options, for example, adding Option “VertTwoFingerScroll” “On” before the EndSection will enable two fingers vertical scrolling.