Some computers have it some don't.  All computers do the 2 finger scroll on webpages, file managers, text editors, apps and softwares, etc.  However there are some computers which do not have 2 finger scrolling in the fences.  Namely Asus and Razer Blade.  I think it may be a difference in the touch pad drivers where Elan do not. 

However the Elan touch pads do scroll on most apps as I said in the first line.  Synaptics touch pads seem to have no problem scrolling in fences.  I think this remains a mystery that is unsolved since I first brought it up in late 2018.

I did notice that my Synaptics touch pad has lost the ability to 2 finger scroll in fences when it has only been moved over the fence, and not clicked on the fence yet.  I did no Windows update, and no fences update for this change to occur.  This is a bad change.  I prefer when I can 2 finger scroll just from moving into the fence, but not clicking it.  It may have something to do with an update to the Rainmeter exe.   I have been looking at my having updated the Rainmeter .exe I am using.  This is possibly the only change to my one Synaptics touch pad computer.  However I still do not install the Rainmeter .exe and only run it as a portable executable that I keep in my taskbar.  This may be a source of some of the issues.  Perhaps a starting point for software designers would be to try to work with the Rainmeter which is also a very important desktop customization program.

Again it seems that Elan drivers which do run with 2 finger scrolling on all apps and such, are the problem here and that would be the second point that Fences software developers would need to look at.  I should add that I have a brand new subscription and have bee using the newest fences software on a Razer Blade computer with a Razer Blade Pro touchpad, which I think very closely resembles the Elan touch pad on an Asus ROG I use at work.