It starts out more, of course, til the pouch stretches.
I never needed Immodium. Metamucil made things too bulky and slow, so quit that very fast.
I never got caught up on a number of times going, either, because I was continent, unlike at the end of my colitis, where I'd have accidents. So, even now, I don't count. Might have 5 in a day... Maybe 8... Maybe 4. Depends on many factors. My pouch is much more efficient with absorbing water these days, and consistency for me is usually porridgey. I also have slept through the night for years, unless I eat very late in the day, then might get up once, depending on what it was (had rolled sushi last night at 9pm, and a Corona, and all was good (though bedtime was at 11:30pm, so I went before bed).
I had a two step, and initially I lost weight before surgery number 1, with the UC and bowel rest, but the 4 months with my loop ileostomy got me back to a healthy weight. Never had a weight issue after takedown. Was in nursing school 4 months after takedown, commuting 30 minutes to and from, and did just fine.
Everyone's experience is different, and trial and error, as mentioned above, is key. Food wise, I started with thickening foods, but very quickly after, I was eating anything I wanted. Perhaps it was young obstinance, I don't know, but I never let it get in my way. Though I didn't have scary Google answers to what *might* happen, and just went on my own journey with it, and was lucky. I do tend to avoid nuts, seeds, corn, and mushrooms, as I've suffered a narrowing, and those things can be harder to pass... And now, actually, thicker foods sometimes give me MORE issues (really honestly DO do better with salads and stuff like that).
I always wonder if perhaps people who have less trouble might have more small bowel footage or something? Like more time to absorb water or something? I've always wondered if that was my case. I remember reading someone here posting that their doc said THEY had a longer small bowel, and they did really well, too. Never know.