Transform Scale in Export Window doesn’t work the same way as Unit Scale does. For sure it would solve the issue but it you set Unit Scale in Blender to 1 and Scale of 0.01 in Export Window the scale of object will be 1 but the size will be 100 time smaller than in Blender. If you leave Transform Scale in Export Window to 1 and Unit Scale in Blender to 1 too then you’ll get you model imported to another software with a scale of 100.
The only working solution to import to another software a model from the Blender with a scale of 1 and of the correct size would be to use Unit Scale of 0.01.