As it turns out, using the Extension Manager did not really uninstall the Trimble Scan Essentials plugin. However, do to some replies from others, I did get the issue resolved.
OK, I finally got everything setup correctly now. It was kind of an awkward process but here is what I did:
First I uninstalled 2026
Then I made sure all plugins were up to date in 2025
Then I clicked on the check for update in 2025
Now I ran the update option in 2025 to install 2026
When the process for installing 2026 ran, I deselected the Trimble Scan Essentials, Revit Importer and V-Ray
Everything is now running fine and the Trimble Scan Essentials is finally gone and all of my plugins are installed and things are now the way I want them.
Once again, I really want to thank everyone (on the SketchUp and SketchUcation forums) for the replies and insight of how to get things going correctly again.
As I said in the original post, I have been gone for a while. Now I can get back to using SketchUp (latest version) again.