There are still those among us who save many many files to the Desktop. In an age of cloud storage it’s still hard to justify doing this, but never-the-less it happens.
If you are making a presentation or sharing your screen here’s a simple tip which you should use if your desktop resembles a crochet blanket of files.
Right-Click on your Desktop – choose View
then unselect Show Desktop icons
Your Desktop will now only show whatever colour or wallpaper you have personalised it with.

To show all your desktop icons: