Can You Buy Lightroom Standalone -

Because the old "standalone" experience is now split into two products, choosing the right subscription depends on your workflow: Lightroom pricing and membership plans - Adobe

While some users still run Lightroom 6, it no longer receives updates for new camera RAW files or bug fixes, and some users have reported issues with activation servers on modern operating systems. 2. Modern "Standalone" vs. Subscription Bundles

The Status of Adobe Lightroom: Is a Standalone Purchase Possible?

Lightroom 6 was the last version available for a one-time purchase.