[WP Smush Pro] After Offload to Google Cloud , Smush seem not working!!

I am set up stateless plugin to offload my media library to Google Cloud Storage (GCR) .
Now, All new images not Smush.
I know you plugin does not compatible with GCR but I think if I enable smush on upload it will optimize photos before upload to cloud.

Could you take a look ?
Best Regards