Gaming

There isn't really a fixed level, because if you could spend memory and bandwidth on keeping assets for an interior loaded prior to entering, you could also spend them on making the interior and exterior more detailed. I can't imagine there ever being a point where there isn't at least a consideration of whether to make the tradeoff.

I mean..I could understand that question a handful of years ago, but now? There's a long list of games that only have a loading screen when you open the game and never again.

Even as far back as minecraft for the most well known ones. TLOU iirc was like that as well, back in ps3. Now with nanite I bet it will be even more common. But I doubt we'll ever get to a point that ALL games are like that. Sometimes it's even done for artistic purposes. Or continuity reasons.