You can change folder icons in Windows 11 by right-clicking and selecting "Properties" and "Customize." Desktop icons like the Recycle Bin are changed in the Settings under Personalization and Themes.
There's a lot to love about Mac, but one of its quirkier features is how easy it is to change icons for files and folders. By default, a file is depicted by a piece of paper, while folders are -- well ...
If the macOS desktop is looking a little boring, or is in need of a little more personalization than a change of background image, one solution could be to change how files, folders, and apps look.