I used to be a programmer and it seems to me that you don't need that much code to show other data. The name and surname are already loaded, you just need to load other data along with the name and surname.
But enabling the selection of fields is a different matter, there will definitely be some code there. You have to add the entire functionality. But it would be useful.
Showing the entire contact is also a solution.
For me, any solution is good, because now I don't know who's calling me and what we're going to talk about. I have 500 clients from different companies on my phone. When I see what company they're calling from, I know what the conversation will be about. And now I have to ask what company the customer is calling from, it's a bit rude.
Can you tell me where to submit a request to implement the feature? I'm new and I don't know.