FWIW,
From March 2023.
If you use the Sketchucation Extension Store to install updates to Fredo’s extensions as well as the Extension Store tool you will be notified when there are updates to those extensions and you can update them all in a single step.
Also, when you install a new version of SketchUp you should get the current version of the Extension Store direct from Sketchucation to install. Once installed, use it to install your bundle of extensions from Sketchucation. Don’t use the Extension Migrator for those extensions.