I’ve seen it generally recommended to sequence protein and fiber before anything else in the meal. So yes eating your carbs an hour earlier would in fact be worse for your blood sugar.

I’m not sure how it would be impacted if you ate the carbs an hour later though.

I think you risk overeating carbs, as protein and veggies are better at filling you up. The reverse might be okay.

I’m inclined to say yes. Separating the types of stuff which needs to be digested makes it easier to produce the required acid. This reduces the chances of developing digestive issues. Theoretically.

“Much difference” and “healthwise” are difficult.

Healthwise can point to a lot of variables, depending on which aspects of health are in question, and exactly what range of factors you think are “healthy” to begin with.

So, applying “Much” difference is extra iffy, since much is relative, and may not be seen the same between criteria.

That being said; no, not much difference for most people. Not even much difference for the people that don’t have very specific needs, but could get some vague benefit from that kind of intake.

Where you’ll see some degree of benefits that could fairly be called “much” is weight control.

Generally, if one has some degree of difficulty with calorie intake limits do better when intake is spread out more. You end up with fewer spikes, a more even result; which when weight control is the primary goal, you see more benefits up to a point. With less spikes in blood sugar, and fewer calories “leftover” to turn into fat, a form of grazing helps.

Mind you, that isn’t saying that smaller intake more often is some silver bullet to weight control. It isn’t. But it is the area where you’d see the “much difference” compared to eating the same things at once.

Otherwise, the only reason to do it is as part of a prescribed diet built by a professional. Any benefits to the average person just wouldn’t be significant enough to merit the extra hassle