You know, i've done a wide variety of things. Growing up, I ate three meals and two snacks on average (one snack after school, another snack after dinner around 8 pm).
Then, you know, in university, I would have two meals a day plus snacks (often skipped breakfast). Then, when I met my husband, i was back to 3 meals a day, but breakfast was often a smoothie or just couple of pieces of fruit (i know! LOL). He often ate 5-6 times a day due to weight training stuff.
Then, you know, years later we become primal. And we seem to naturally reduce to 3 meals plus one snack no big deal. And now that we started IF, we are really two meals and a snack, or just two meals, and DH is often three meals and a snack in his window, or just three meals. It's fascinating, really.
My husband would ahve said like you -- he HAD to eat 5-6 meals a day. He used to be very insistent on that. But now he's like "hmm. I only feel like two meals today. . ." and so on. Interesting.
