I think its interesting that mainstream PC gaming press is now talking about Linux. We have the benchmark Youtube channels doing some benchmarks of it as well and plenty of reports of "it just works", which is pretty promising at least for the games that aren't intentionally excluded by DRM. For me its still controllers and equipment incompatibility due to my VR headset and sim wheel/pedals setup, I use Linux everywhere else in my router and home servers. I just hope that Nvidia notices that there does appear to be a swing happening and improves their driver situation.
This is a big reason I’m excited for Steam Frame - high quality VR on the Linux desktop.
The keyboard animation happens on the touchdown event, whereas the letter is entered into the text box on the touchup event.
Between the two, more information might emerge about the touch - for example the exact shape of the touched area, and movement during the touch, etc.
I would guess the keyboard sees a down in one spot, and an up in a slightly different spot which falls into another letter.