I guess you could call what I do intermittent fasting, but it's very loose and I don't follow a particular plan. I just don't eat breakfast, and wait until I'm really hungry before I start eating for the day. My schedule is wacko, so it depends on the day. I might go as little as 3 hours before I eat, or as long as 8.
I've been doing this for probably a couple years now. I experimented with different eating schedules and fasting regimes after a big diet change to improve my health. I settled on what I do now after realizing, I'm not hungry when I wake up, so why force eating? I also don't like eating when I'm distracted or rushed, so don't eat if I'm in that state.
I've considered that I may need to eat at times whether I feel like it or not, for "fueling," but have found that my energy levels and mood is fine during my fasting period. I used to cram breakfast in on days I knew I had a lot of physical activity ahead of me, because "I'll need it," but stopped for a couple weeks as an experiment. When I started eating breakfast again, I felt like crap. Bloated and sluggish all day. That's when I stopped with breakfast altogether. You really have to listen to your body and decide what works for you.
Don't get me wrong, I love breakfast foods and eat them at other times. It's also not a hard and fast rule. If I wake up and want breakfast for some reason, I'll eat it. And I am not an asshole about it if someone wants to serve me, or go out for breakfast. Old people especially, love breakfast dates. I don't tell grandma to fuck off if she wants to meet at the diner, and will have a little something so she's not gobbling pancakes alone.