This map is very difficult to understand if you did not attend the conversation.
The focus during the conversation was the Vector Database and all around the needs to build it and make the performance to be the right one.
Then we were discussing about why we are not using another approach for the final solution and this drawed the components on the left side linked with a violet line.
I have added inn violet the basic reasons because this choice is not the right one in the majority of the cases.