I am sure it’s different for different people…
I did IF way before keto, it came naturally to me. It changed on keto (smaller eating window, fewer meals) and went chaotic on anything close to carnivore (when I regularly went below 20g carbs for the first time… my number of meals shoot up but not every day and hopefully just temporarily).
Snacks as separate tiny meals as many people use them… Aren’t really my thing. It may happen but extremely rarely and it was like that all my life I guess. I needed my substantial meals and they satiated me for a while. I never eat when bored either but I hardly can imagine how a human can be bored unless closed into some place without anything to do, actually.
And if I just want to consume something without any need, a drink should do (not like I am always that good in practice… but I need to eat anyway, quite often and quite much, being a human so little harm is done if I eat without hunger - sometimes I must eat without it anyway, I rarely get seriously hungry).
Hunger is just one signal, it’s often not even reliable and it’s fine as long as we still can figure out when and how much to eat without messing things up. Even if someone’s body communicates and nudges and complains very well, it’s not always clear when there is a real need to eat. But we don’t need to do this perfectly, things may get balanced out even if we don’t wait until a Very Serious Need (like an annoying hunger)…
I only feel very clearly when I had enough when I eat meat (except chicken, that can’t satiate me). With other food it just doesn’t happen so clearly, between “no hunger” and “very satiated, don’t want more” I easily eat a huge amount. It’s not so much when I choose my items well but meat is still special. I think it’s common, certain foods (not the same for everyone) are too easy to eat a lot of, without getting a stopping sign.
If I am hungry, I eat, this was my only serious rule for long and vaguely it still is. But I have some very soft type of hunger now. It feels nice, I feel zero urge to eat, I can wait and it’s hard not to wait. I like fasting as long as I feel good. I prefer satiation but this soft hunger is okay too. I need fat adaptation and very low-carb for this type of hunger but I can get annoyingly hungry too. I eat almost immediately then, I am a hedonist, I don’t want to suffer (and my body would be mad at me and that’s not pretty).
But indeed, since fat adaptation waiting a bit (and often more) is usually not such a big deal. (I am still bad with that but my rule is very strong. hunger means I should eat, for me).
Fat-adaptation happened after 7 weeks on 35-40g net carbs, IDK if lower would have changed it but probably just being in ketosis was enough, 7 weeks is pretty normal.
But as more time passed and especially that I chose my food items better, my hunger changed again, it doesn’t come so often, I got the super nice type and satiation is often easier (but quick satiation doesn’t lasts so long).
I think you can expect changes yourself but maybe tweaking with your woe brings the really big changes, who knows.
And while our woe can change a lot, even making us a different, better person sometimes (carnivore instantly solves most of my eating problems), it has its limits (and we don’t even know our ideal woe right away. ketosis alone isn’t enough for everyone). Some of our problems are mental and we need to battle them ourselves for a long time, even on a helpful woe.