Maybe here
https://www.filemail.com/d/dsrouppskmkyzmt
Here the apk I extracted from the installed app.
This keyboard has an option in the settings to test the current settings by forcing the keyboard to open. Other keyboard apps might have that too but I don't know them. It might help forcing it once. Maybe that will make it unstuck from the current situation.
https://play.google.com/store/apps/details?id=com.beansoft.keyboardplus
This not really a G8s specific question, but as long as there's no flood of them....
Do you mean Live Wallpapers?
Sure. Loads of them. If you install this shortcut you'll see whether any are installed, sometimes they are incorporated as part of a non-wallpaper app.
https://play.google.com/store/apps/details?id=com.BenPaul.LiveWallShortcut
Otherwise search for: live wallpaper in the Play Store.