Using model serving from databricks privacy issue

[gmu77113355]

When using Databrick's model serving to query Llama3, I noticed the endpoint URL is my databricks instance. Does that still mean data is sent to databricks process by databricks?  
If so, does databricks keep/use any of the data sent to model serving end point?

[gmu77113355]

Related question, when databricks process requests for foundational model, I noticed the latency is pretty small, wondering what kind of processing power is used on databricks side? I am interested in hosting model ourselves so wondering what type of processing power does databricks use.