If you eat a bowl of rice this likely will happen: Your blood sugar spikes, insulin is released. If after a while your blood sugar is still elevated, another dose of insulin is released which can push your blood sugar below baseline and to the point where "hunger" is triggered.
If you eat the caloric equivalent of that in the form of a steak, your blood sugar stays more or less constant.
How exactly this plays out depends on your insulin sensitivity. It may be different for highly insulin sensitive people, but empirically it is true for me and probably for most people, otherwise "sugar crash" wouldn't be a word.
Of course, you probably won't eat just a bowl of rice except for experiment, adding some fat and protein can greatly mitigate the effect.
> The healthiest populations in the world eat a lot of (untefined) carbs so the idea that carbs = fat is simple and appealing but also wrong.
The "healthiest" populations also are outliers in many other respects. I'm not making an argument that a high-fat diet is healthy or unhealthy. I'm saying that fat, protein and carbohydrates are quite different in how they are experienced from a dietary perspective, regardless of caloric equivalence.
Really what you need to do in order to avoid this effect is to add fat and protein into your meal.
As for what "most humans ate for most of history", it's not really clear-cut.
https://pubmed.ncbi.nlm.nih.gov/3001740/
Add some veggies to your meal.
https://en.wikipedia.org/wiki/Insulin_index
Beef is above even white pasta. Your blood glucose and insulin levels are two different things.
The healthiest populations in the world eat a lot of (untefined) carbs so the idea that carbs = fat is simple and appealing but also wrong.