In my opinion , the best kind of   Cellular Data Plan  for a    "  Laptop that can make phone calls and answer phone calls  like a 5G smartphone with the help of a 5G USB Dongle " ,  is a package that offer       "Unlimited 5G Data", which is    reasonably/moderately   priced  by  the Telcos . This is a good move to increase the adoption of        "Laptops that can make phone calls and answer phone calls  like a 5G smartphone with the help of a  5G  USB  Dongle" and  to accelerate progress and development in a country in the field of Education , etc., etc.    When many people use  ,  "Laptops that can make phone calls and answer phone calls  like a 5G smartphone with the help of a  5G USB Dongle",   hopefully, the price of a real and a true 5G Cellular Laptop machine may drop .  In my opinion , 5G is better on  a  5G Cellular Laptop   than on a 5G smartphone . Anyway, we all have different opinions .