First, let’s clear up the naming convention. The is the paid desktop application offered by Trimble Inc. Unlike the free "SketchUp Free" (which runs entirely in a web browser), SketchUp Pro is a native desktop application available for Windows and macOS.
: LayOut features a modernized UI (Windows-only) and four new professional drafting tools: Trim, Extend, Fillet, and Chamfer sketchup pro version
As of recent pricing updates, Trimble has moved entirely to a subscription model. You cannot buy a perpetual license anymore. First, let’s clear up the naming convention