With Filestar you get 0 different skills for working productively with Lightroom Classic Catalog (.lrcat) files.
About .Lrcat
Name
Lightroom Classic Catalog
Extension
.lrcat
Format
Binary
Category
Camera
Developer
Adobe
Description
A Lightroom Classic catalog is a SQLite database holding a photographer's whole library: photos, folders and collections, and for every photo its develop settings, metadata and develop history.