Move more, eat less is straight t from the food industry. Exercise is great. It has a boatload of benefits. But weight loss is not one of them, as you discovered. After boatloads of reading I am also doing IF, but not the large window you are doing, because yes, as a diabetic, that could lead to hypoglycemia, which is a medical emergency. However, my metabolic state has improved.

I also cut all commercial foods and eat only whole foods. Though I still enjoy a couple things. Added sugar per the WHO should not be over 50 grams, preferably 25 I keep mine to five, and I know exactly where they come from. A very high quality dark chocolate, which has clear benefits, and my muesli in the morning.

Feed the gut, protect the liver, I live by those words from Doctor Robert Lustig