I agree that double tapping isn’t necessarily intuitive. So that’s why I use Inovelli’s Config/Favorite button, i,e, the little side button (which is a Button 7 push) for the default dimmed value I want. I found everyone quickly learned to push that. Plus, for switches with no other scenes you can then change Config 51 to “on” to disable the 700 ms delay, together with setting parameters 1, 3 and 4 to zero to get that near instant on effect. (Just BTW, I set param 2 to 3 for physical dimming from the switch).
As I posted above, I think a singe tap up should set the associated light(s) to whatever the current default value is set to regardless if the light is off or already on.