The best way to have the entire world in UE5?

Thanks for the link SupportiveEntity,
unfortunately the webinar is focused on a small area, which isn’t an option for me.
I’m wondering how Blackshark.ai are doing it in such a quality and how far on the horizon their UE plugin is.
I don’t mind putting in the work to make some system of my own, the problem is I don’t know how nor do I have a budget capable of handling a paid API.
I would like to take a look on a piece of your reply:

Did you mean any specific programs and data here?
In all, thanks for the help so far.