Laptops have been around for quite sometime now ( just imagine , many years ago it use to look something like this and this and this ) and with the advent of IoT , 4G and 5G , in my opinion ,  5G Laptops  should no longer be like Laptops only .  

Meaning ,  5G  Laptops should not only have cellular connectivity to  a 5G network for high-speed Internet access but 5G Cellular Laptops should be  re-engineered  to  be like  5G Smartphones , too .   

Meaning ,  5G Laptops (regardless of screen size,       regardless whether it is " 360 degrees foldable " or "detachable" , rregardless of what processor/microprocessor  it  uses , regardless of the Operating System being used , regardless whether it has DVD-RW Player built-in or without DVD-RW Player built-in , etc., etc.)  must be able to make phone calls and reply phone calls just like  a 5G Smartphone and must be able to do all the stuff that a 5G Smartphone can do . 

Besides that , if we have a 5G Laptop(like for example this) and we have a 5G Smartphone , whereby both of them have SIM Card Slots , and if we were to pull out a SIM Card from our 5G smartphone and insert into our 5G Laptop , we should be able to make phone calls and answer phone calls directly on our 5G Laptop , just like what we did with our 5G smartphone .     

No 5G Smartphone needed! 

No 5G  Smartphone required ! 

No tethering required ! 

No Microsoft Phone Link  app required !

Last but not least , in my opinion , the best smartphone technology in a PC/Laptop is still Windows on INTEL , not Windows on ARM .