Layouts let you put more than one widget in a row. They're under Add Widget → Layouts.
The four layouts
2 Columns — two square widgets side by side
4 Columns — four squares in a 2×2 grid
Single Row — one wide widget across the row
Bento — two squares on top, one wide row under them
How to use them
In the editor, open Widgets and tap + (or tap the + in the top toolbar).
Under Layouts, pick one. Empty slots say Empty / Add widget.
Tap a slot. That opens Add to layout, which only shows widgets that fit.
What can go in a slot
Layouts take songs, albums, YouTube videos, music sales, a single merch product, profile cards / Profile Stack, and custom links.
Text Block, Image Block, and Button do not go inside a layout. You also can't put a layout inside a layout.
Deleting a layout removes everything in its slots. You can also hide, duplicate, or collapse the whole layout from the widget list.