In macOS Sonoma, Apple has changed the widgets landscape. No longer do widgets have to be hidden offscreen and largely forgotten in the Notifications Center panel. Now they live right on your desktop – and they’re interactive, too.
It’s worth noting from the off that widgets can still be parked in Notification Center, but now they can also be dragged out onto the desktop. The first widget can be placed anywhere, then Apple provides placement guidance for subsequent widgets by displaying a widget-shaped outline, indicating where they can be snapped into position in relation to the others.
Alternatively, if you right-click on an empty space on the desktop, the menu that appears includes a new “Edit Widgets…” option. Selecting this brings up a widget gallery, which – thanks to a new Continuity feature between Apple devices – also includes widgets from your iPhone in all available sizes. So even if you don’t have the corresponding Mac app, you can still use the iOS widget right on your desktop. Simply drag it from the gallery into an available space.
Read more at MacRumors.com