Copy the Editor folder to your project's Assets folder. No files will be touched by the Importer unless they are explictly configured to. IMPORTER Use importer. Otherwise bypass the file and let Unity ...
Warning: This addon does not work well from Blender 3.2 to 3.6 due to internal changes in vertex attributes in Blender. However, there is currently an 0.9.0 alpha release available that should work ...