I'm curious, why? I certainly remember noticing this big time when I first got trigger shifter and sti shifters after dt shifters, but dt really have a noticeable "will I take the time to reach down again for the millionth time to shift" thing going on.
Answering for Rohloff, not Pinion here, but I suspect they are the same.
Quite often I do not shift while slowing for a stop at a red light because I was braking with both hands. Thus, no shift on a derailleur bike. Rohloff, that can be shifted after I stopped.
For me, a rear derailleur shift takes a bit of time when going slow, you have to keep pedaling but at a much lower torque level while you wait for the chain to wrap half way around the cassette to complete the shift. Yeah, that is less than a second, but it is noticeable.
And derailleur bike, front shift, same as rear in that you have to wait for the crank to go a half revolution before you can pedal hard again. I often pedal half a revolution before my chain has started to catch on the other chainring.
Sometimes I just say, I think I will stay in this gear a bit longer instead.
I shift my Rohloff by slowing my pedaling for just a tiny fraction of a second. Some people keep pedaling, but you have to reduce torque when you shift. On an uphill there have been a few times where I tried to shift my Rohloff just as my crank is at that point in the pedal stroke where your torque is lowest,but that takes some mind and hand coordination with feet, which is not always successful.
And of course it has a sequential shifter, you do not have to think about coordinating two shifters.