“Ideal” fat/protein ratio (or even grams) are very individual, of course. We need a very different amount of food, we have different bodies and goals and everything, of course one may need 50% fat and the other 95% though I am aware these are extreme cases 55 and 80, then, still quite different. One may handle both very well…
My ideal fat-loss ratio is still a range but probably a small one. Too lean food and I don’t only lose variety and get bored of all my food immediately but I stay hungry and start to desire fat like crazy. Too fatty food and I need to overeat to reach satiation and satisfaction (unless it’s fat fast but that’s special, temporal, not sustainable at all due to almost no protein). I need both, in similar amounts (now, with my current energy need. if I suddenly got super active, I would need more fat as my protein need wouldn’t change much. I already eat over 2g/kg protein for LBM, after all). While others may feel right with more protein or more fat. (I feel okay in a bigger range, I just overeat if my ratio is off. Every dietary mistake of mine results in overeating fat.)
We should figure out what works for us. My ideal approach is minimizing fat as I tend to eat way too much of it (but I shouldn’t try to focus on the others either as I should keep them at a comfortable minimum as well. it’s hard to be one with overeating tendencies). But it’s probably a bad idea for most people especially on keto (and even I do it nicely, listening to my body, not enforcing things, not even for very indulgent limits). They should figure out their own best approach. Or second best. Or whatever they can.
I can’t judge this but it was true for me. My fat ratio was quite low in the beginning… It went up later and then it went down again in leaner meat phases… It’s so odd to me seeing people trying to stick to 75% or 70%, no matter what because that is keto. Nope. Keto may be low-fat too, actually (not good for long term for most people but ketosis happens), it’s all about the carb intake but even that isn’t totally fixed, still, 20g is a good number as a start.
And 70% is waaaaaay too high for me most of the time, let alone 75… And I don’t eat little (yeah, that’s why my protein is so high in grams but what can I do? Food with 60-65% fat content is so awesome :D). But it varies, sometimes much and it’s fine.