Since upgrading to 18.104.22.168 I have lost the option to toggle on and off the "disable touchpad while typing" feature. well, to be more specific, the synaptics driver had this option disabled by default. I see that the libinput driver enables this by default, but I can find no information regarding the syntax of the command line I need to turn this feature off. I'm sure there's a simple one line command to set this option to disabled but as of yet I have been unable to accomplish this.
I realize many users with smaller netbooks and such find the jumpy cursor annoying when their palms brush against it. However not being able to toggle off this feature makes many of the games my kids love to play, minecraft specifically, pretty much unplayable. For me, Id just as soon permanently disable it, but we should at least get the option back to use it or not.