Versions prior to 2021 had basic cloud sync. introduced the Trimble Connect Panel as a native window inside the modeling space.
Is it worth staying on 21.0.0? Here is an honest comparison: sketchup 21.0.0
The stability of 21.0.0 was generally regarded as high. The removal of the "Application" menu on Mac (reverted later in 21 Versions prior to 2021 had basic cloud sync
Trimble Inc. has historically adhered to a release cycle that balances core engine stability with user-interface refinements. SketchUp 21.0.0 represents a response to user feedback regarding the management of complex models. As architectural and interior design projects grew in complexity, the need for better organization tools became paramount. Version 21.0.0 addressed this by introducing structural hierarchy to the "Tags" (formerly Layers) system and integrating cloud-based parametric capabilities. sketchup 21.0.0