“A laptop is a compromise...”
BS...I retired desktops years ago and do everything with laptops. There is no reason for a desktop if you are not a supercilious gamer, or think your desktop is gonna be a server (which it won’t be).
And there are times when any of us ‘need’ a laptop. I need one when I want to go to another part of the house and use it. I need one when I travel.
And btw, there is no excuse for ‘loosing all my data’...it is called backup! Backup can easily be done to an external hard drive...they are not expensive. Backup can also be done via ‘cloud’ and this is available various ways...Norton, a very good security system, has it available.
Just as you said, you don’t want a desktop unless you want a better computer for instance to play games, and if you don’t need a laptop, because you don’t want to take the computer around with you.
If one doesn’t need to move their computer around, the the desktop is superior, more computer for your money, no problems with overheating, no money wasted on a battery pack that you won’t use, and will go bad in time, whether you use it or not.
With a desk top, it is easy to replace and update components, and it should last much longer than the laptops, which are basically disposables.
Why would someone who uses only a desktop computer, want to use a laptop for that same purpose, since a laptop is a compromise?