Yes, I've covered here many times.
Exercise if done correctly is the best medicine to lower blood glucose and help lower and even reverse insulin resistance.
I've found exercising 1 hour after eating kept blood lower. 15-20 minutes fast walking should do it.
For me, I did HIIT(High Intensity Intermittent Training) exercise as it burns fat longer, as I wanted to remove the fat around my pancreas. Intermittent fast and fast running in the spot, squats, and press-ups. I got to a point can I could do 150 press-ups and 200 squats without any problem. Later, I started swimming, and going to the gym. It's important to do resistance training to prevent muscle loss, as rapid weight loss as I did, can results in muscle loss not just fat.
The result for me after months of hard work( as I've posted before here), was full reversal, and now have normal blood sugar, and even got a OGTT to double check.
I've just come back from a 5 weeks all include holiday, and had pizza, cake, pastry, etc.... and was 4.8mmol/l after getting back home from holiday yesterday , and 4.6mmol/l this morning. So all things are possible! It's not easy, and takes a lot of sacrifice and determination. I wish you all the best with your journey.