Adobe briefly sold perpetual licenses for Adobe Premiere Pro CS6 (not CC). You can find used CS6 licenses on eBay for $200-$300. That is a true offline, forever license. It does not support modern codecs (H.265, ProRes RAW).
Adobe Premiere Pro CC 2018 Overview Adobe Premiere Pro CC 2018 (Version 12.0) is a professional, timeline-based non-linear video editing software. It is widely used by filmmakers, YouTubers, and content creators to produce high-quality video content. Adobe Premiere Pro CC 2018 Free Direct Download Offline
: If you previously purchased or registered a perpetual license for an older version (like CS6), you might still find it in your Adobe Account under "Available Downloads". Risks of Unofficial "Free" Downloads Adobe briefly sold perpetual licenses for Adobe Premiere