Shift+F10 works on Windows and Linux GTK (not Qt) apps, but it's not self-documenting unlike the menu key.
Also bring back keyboards with external media keys that don't require holding Fn to either change volume and tracks, or press F# key shortcuts. Also please give me an EC firmware which maps top-row keys to media keys when pressed alone (for convenience), and to F# keys when either Fn or any other modifier keys are held (so you don't need to add an extra key to complex modifier chords relative to on desktops).
Also bring back keyboards with external media keys that don't require holding Fn to either change volume and tracks, or press F# key shortcuts. Also please give me an EC firmware which maps top-row keys to media keys when pressed alone (for convenience), and to F# keys when either Fn or any other modifier keys are held (so you don't need to add an extra key to complex modifier chords relative to on desktops).