Hello David
I use laptops for years now.
The right laptop can be better than a Desktop as far as EMF goes.
It has to be weirdly connected to the network and the WIFI and Bluetooth cards need to be disabled from the Device Manager. I recommend using a wired keyboard and mouse as well.
In order for it to be low EMF, it needs an SSD disc and not mechanical.
In addition, some of the laptops emit a high electric field while charging.
The solution for that is eighter to use it on battery mode or to connect a ground cord.
Please see the following video that explain how to make such a cord -
https://youtu.be/iAoanFL88P8
Amir Borenstein
www.norad4u.com
www.4EHSByEHS.com