Currently looking into the issues, though its proving to be a tricky fix with the changes in big sur. Stay informed about updates
Not sure how much that would benefit as you'd use your mouse to interact with things up there anyway. Might see if I can get most of its functionality directly in the Touch Bar.
In every app there is a "Control Strip Button" trigger, removing these and disabling the option you found in the settings should do the trick
Unfortunatley BetterTouchTool doesn't have such a feature to add localisation to presets, this would be a great idea for @Andreas_Hegenberg though it might be a big feature request. Currently to support different languages I'd need to release completely seperate presets.