Hi guys i am having trouble with exporting my glb file into spline software with textures so basically you cannot setup textures in spline which are that realistic so i want to export my can model which I made in blender and also i did bake the textures and all so need help with this issue is it even possible to export glb with all the textures?
Can you elaborate on the problem you are having?
I assume you have already enabled the built in add-on, right?

This will give you the .glb format option in the File > Export options.
Before clicking export in the file window, check the settings on the right panel. In the Data dropdown you'll see a material dropdown for the export settings.
If all looks good and the exported objects and textures are successful, and you still have problems then the issue is likely in Spline.
I don't know anything about Spline, but I would suggest like many other software imports, the textures may need to be imported as well as the object and then applied to the object within Spline.
Thanks for your response yes i did have that add-on also the problem is that i just want to know is it possible to get all the textures in glb lets just say i have a product with gold and silver basically with some pngs and its not exporting everything i will add the screen shots too and this is just something i am having troubole with i want to know is there anything else that i donot know about glb export like any node setup or something this is product i am trying to export into glb

This is how its coming forget about the mesh its about the textures

I would suggest reading up on .glTF (.glb) Material Export in Blender Manual.
I believe there are limitations to the .glb material export.