Found under the "Image Quality" section. Magic Light AI: Located in the "Creative" panel.
Since extensions are no longer separate "apps," they live in specific sections of the workspace: HDR Merge: For combining bracketed photos. download luminar extensions
If you have an active subscription, extensions are included. Simply ensure your software is updated to the latest version. You can check for updates in the Luminar Neo menu. Found under the "Image Quality" section