Fotocx on Ubuntu Studio 24.04
Fotocx is a free Linux program for editing photos or other images and managing a large collection. It is meant to manage very large photo collections of up to 1 million images on a strong PC, meaning a computer with 4+ CPU cores and 16+ GB memory. Rapture should be quite strong enough, with 8 CPU cores (16 threads) and 32 GB of RAM.
Ubuntu 24.04 responsitories include an older version of this application, formerly named fotoxx, but the application is quite easy to build from source to run the latest version.