Hi Filip, unfortunately I am not familiar with a way to monitor the space taken by your workspace exports as this is done on your side, but if your main concern is making sure the service is functioning properly, whenever something goes awry you will find an error in the console stating where the issue is or the component involved. I suggest checking
API Errors | GoodData Cloud Native for more information. Regarding the scaling of the service, may I know your use case? Are you currently hitting any resource limitation?