One can be on intermittent fasting and eating regularly. I ate at 12, 14.30, 16.30 and 19.30 every day. Also anecdata (i.e. sample size of 1), but IF helped me tremedously with both weight gain and loss, at different times in life of course.
You're just watching what you eat, two very different things.
This is normal 16-8 IF with additional rigidity of schedule.