I'm running Ubuntu 20.04 with Gnome 3.36.9 on a kiosk that is running a Chromium that displays a web app. App has a custom built in on-screen keyboard. However, every time when user taps on any of the input fields, a default Gnome on-screen keyboard (Caribou or whatever it is called) pops up (despite being disabled in the Universal Access settings).
There is a workaround to disable the keyboard via Gnome Tweaks extension , but I can not install the Gnome Tweaks, as they are incompatible with the later versions of the shell, like the one that I'm running.
How to completly uninstall/disable this damn on-screen keyboard?! I'm totally ok with hacky solutions by this point, as I'm getting really pissed at Gnome by this point.