I need 1 teaspoon of salt a day, a big part of it is salt I add to my food (unless I overdo already quite salty food like sausage or cheese). But many people (most ketoers, it seems…?) need way more. And some never salt their food. It’s somewhat individual. We all need some salt, obviously and it’s hard to imagine someone not needing any added salt without a big amount of food as natural sodium content is quite small, I only get 1-2g a day that way and I don’t eat little but many people eat much more.
Number and size of meals are individual too (just like when we start to eat. of course that may vary wildly even for the same individual. I don’t get hungry at the same time, I have a typical time but there are exceptional days and it’s fine). I need my nutrients (just like others) so on the days when I only can have small meals (quick satiation, not fun but sometimes happens), I eat many of them and when I have bigger meals, I less. If I don’t get enough nutrients, I end up getting hungry later so it’s hard for me not to get enough food, accidentally or not. But no matter if you feel hunger, you need your nutrients.
2 meals (if properly sized, with the proper food nutrient wise) are quite fine, you don’t necessarily need 3. For some of us 1 meal may be more than enough, at least sometimes but that’s far from typical. Do what works for you best. Of course you may not know it yet, you did a drastic change and even with a subtler one, it often takes time to find our sweet spot. But try to listen to your body, don’t eat too little if possible, don’t try to follow other people’s rules if they don’t work for you.
IF is perfectly fine if it comes to you naturally AND you eat enough that way. I am against basically all force unless one needs it for health or something, even then a slight push and some training sounds better than just going against our own body.
Your IF isn’t new so not doing it may be an extra stress like it would be for me (if it feels okay for you) but it depends on the changes of carnivore. If your food intake drops too low on carnivore IF then don’t do it. Not doing IF when there is a drastic woe change is more like for people who didn’t do IF before (2 drastic change may be too tough. probably works for some though) but many people automatically eat much less on keto/carnivore and IF may be a problem there as well. Or it may be great. Or in-between.