Most Shortcuts default to C:\Users\Public\Desktop which is not indexed by OneDrive, but user created shortcuts or those for apps that install to the user account’s AppData folder (Discord, Zoom) will end up on the regular desktop. For those who do want to back up their desktop but don’t want machine specific shortcuts showing up ‘dead’ on other machines, you can created a shortcuts to the Public Desktop that the user can drop their other shortcuts into.

Now explain this to 80yo grandma who uses her PC just to browse facebook, download cute images and post them