Hi @Angus Lee Thank you for posting your Question on Microsoft Q&A and sorry to hear that you are facing an issue deleting a resource in Azure Cosmos DB.
I don’t believe there’s a way to check progress but this may be reasonable if the data volume is high. YES Yes the size of the database can play a part. There can be a lot of factors at work.
I will suggest to try again if the same issue still occurs then please file a support ticket so we can better assist on this. Do you have a support Plan.
Regards,
Oury