I was originally introduced to the concept of non refrigerated eggs on an episode of the Netflix (branded but not) Original The Big Family Cooking Showdown [0]. They did a home visit and I thought it was weird that they kept their eggs in a box near the windowsill. Obviously since it was common practice they didn't give a background about why it's done that was in England. I've since seen more than a fair share of cooking shows based abroad that have that same unrefrigerated eggs technique, in the back of my mind I'm thinking about the general shelf life and temperature that's needed to keep the eggs from spoiling.

[0] https://en.wikipedia.org/wiki/The_Big_Family_Cooking_Showdow...