Depends purely on taste and required performance. A potato needs a single mesh with a little tris as possible to run.
Overall it’s more about balancing draw call and tris count. But texturing is also important.
You need to set up world origin shifting every 500m or so for the engine to work.
Whatever best represents for interaction.
No, if you want to get a voiceless plugin, there are some which still run better that landscapes though…
Because epic is run on incompetence.
Ways to make the same thing performant have been presented billions of times. They just arent insterested in doing things right.