When I started carnivore, I ate until full 2 meals a day, from 12pm until 7pm. So, was doing intermittent fasting. I had no trouble with hunger at all, and often wasn't hungry enough to eat dinner so would end up doing OMAD (one meal a day). Not by intention, but just because I didn't want to eat just to eat. That was part of the process for me to change my habits.
Every now and then I'll still eat a big lunch and skip dinner for the same reason.
Now, as part of my wife's cancer treatment, we have included fasting into our program, often for 3 days at a time. This has been a great challenge for mastering hunger and the psychology of eating. When researching fasting, we've discovered so many benefits to doing short term, extended fasting. I highly encourage everyone to at least look into it.