44 extensions, one tiler.
Cinnamon installs extensions from the Spices catalogue, reachable in System Settings → Extensions → Download. We went through all 44 entries and searched for anything that touches window placement. One extension does: gTile.
These are the neighbours — useful, but they solve a different problem:
| Catalogue entry | What it actually does | Declared for Cinnamon |
| auto-move-windows | JeffHanna | Moves applications to specific workspaces when they create windows. The closest thing to layouts the catalogue has — it decides where a window opens, not how the windows are arranged. | 4.0 – 5.6 |
| RearrangeWorkspaces | klangman | Rearranges the workspaces themselves, taking their windows along. | 5.4 |
| adjacent-windows | klangman | Hotkeys to jump to the neighbouring window instead of cycling through all of them. | 5.4 |
| cinnamon-maximus | fmete | Removes window decorations the way Maximus does on older desktops. | 2.4 – 4.8 |
| workspace-scroller | ori | Switches workspaces when you scroll at the screen edge. | 2.4 – 4.4 |
| desktop-icons-per-workspace | cardsurf | Keeps desktop icons in different positions per workspace. | 2.6 – 4.0 |
The third column is worth a look in general: a good part of the catalogue was written before Cinnamon 6, and its entries still declare support for 4.x or 5.x. Cinnamon runs them anyway in most cases, but nobody has tested them recently.