@BrownieBatter48 try this thing then
https://vrmodels.store/other/scripts/479-unity-fbxexporter.html
its the only way to export .asset to fbx, but i think it breaks the UV and the topology of the model..
yah in the unity scene go to window? if i remember correctly then go to package manager yr gonna find FBX export or u can search it install package and yr done as long as its a model asset yr able to do whatever