Filling out the form on the plane takes up dead time and we have never found waiting for the immigration guy to be that big a deal. Even when we first off the plane and first thru the desk we have had to stand at the carousel waiting for a bag - the long pole in the tent.
I didn’t like the covid hastle or this one which we will have to do soon enough.
I like to pack my bag, remember the passport and get on the plane.
Less red tape is better