The Fn key is superfluous. Four modifiers, Shift, Ctrl, Meta and Alt are enough. Use Alt and Shift to produce more letters like Alt-Y on my keyboard to make «

The Fn key is superfluous. Four modifiers, Shift, Ctrl, Meta and Alt are enough. Use Alt and Shift to produce more letters like Alt-Y on my keyboard to make « (opening guillemets). If a keyboard has about 48 keys to produce letters or digits, and if you use Shift, Alt and Shift-Alt you can generate 192 different letters or digits, and that's enough. I reserve Meta for handling the window manager (for me it's sway). Sometimes I use Shift-Meta or Ctrl-Meta or Alt-Meta with the cursor keys. This is simple. Meta is not for applications, it is for the window manager. Then there are the F1 to F12 keys. I can toggle the brightness keys, either I press F8 to make the display brighter or Fn-F8. I would prefer to use Meta-F8 instead. That's doable, so perhaps I am going to edit my .config/sway/config file to ignore the Fn-Fx keys. But to toggle the keyboard backlight, I have to press Fn-Space bar, because it is hardcoded in the hardware keyboard controller. Whatever.