Even with the exercise (have "closed all three rings" since COVID) I hit a wall below which I am not losing weight. From experience though I know I need to cut the portion size of my meals.
Years ago when I was preparing to undergo surgery, I would look at the meal I was about to eat and lay out what I thought was a "reasonable" portion. I would eat that and no more. Habitually, I would have gone for "seconds" in the past, but with surgery looming I restrained myself.
I was surprised to find that I was not hungry even though I ate perhaps 2/3? my usual food intake. Tough though to pass on seconds when the meal is a tasty one.
In the end lost another 20+ pounds and was at my lowest weight since I had been recording it.
I'm afraid I celebrated the success of the surgery though by returning to my eating habits and returned to my previous weight.