It's true that fruit belongs to the group of foods with a lot of carbohydrates and a lot of sugar. However, in both cases, these are simple components that the body absorbs quickly. In addition, fruit speeds up digestion, activates fermentation processes...
It is recommended to eat fruit about 20 to 30 minutes before a meal. This is the time when the stomach signals the brain that it has enough food, and fruit provides enough fiber for this feeling to last for several hours. With fruit, you will also warm up your digestion, calm your stomach, and most importantly, curb your hunger. It has been proven that with this method, you can eat up to 50% less and feel just as full at the end as if you ate fruit at the end of your meal. And it's enough to eat just one apple before lunch. If you repeat this before dinner, you can eat up to 400 calories less per day without feeling deprived, which is the threshold at which the body starts to lose weight.
Finally, a warning: fruit raises insulin levels in the blood, so diabetics should experiment with vegetables instead of fruit. However, you will need to eat about twice as much vegetables to achieve a similar effect.