Frankly, nutrition/diet research is a quagmire and online communities zealously supporting particular diets are more religion than science.
It seems to me, at this point, that ANY diet that eschews modern processed foods will be beneficial to health, whether it be low carb/high fat or low fat/high carb. A nice benefit of being omnivorous is diet adaptability. The ears are a sensitive organ, and healthy living will probably be good for them generally.
I think a thing that tricks people with low carb diets is that carbs sequester water, and so when you drop carbs you lose a good chunk of weight very quickly through water loss, and when you increase carbs again that water weight comes back very quickly. People interpret this as faster weight loss on a low carb diet, and then later as unsustainable weight loss from a yo-yo diet, when it is neither. If you can ignore that bit of fluctuating water weight, fat loss on either diet is similar. The key is what is going to be sustainable for you in the long term. There are pitfalls on either side. Ketosis seems to cause a dramatic drop in hunger in some cases, and starvation diets appear to be a bad idea (particularly for women who seem to have a more sensitive hormonal interaction). You can manage low carb while consuming piles of processed meats and little else. You can manage low fat while consuming only crackers (or other “low-fat” products which tend to be higher in sugar and weird additives). I would also hypothesize that sudden changes in either direction can lead to dramatic changes in the gut biome, the outcomes of which we do not yet understand. I have personally concluded that the safest route towards heathly eating is a focus on traditional foods, avoidance of modern processed foods AND modern “health” foods. There is no magical macronutrient ratio; historically, communities have done well with various combinations.
I would also suggest, however (tangentially), that the idea people have that those who are morbidly obese simply need to eat less and exercise more is demonstrably incorrect. This theory has shown unsustainable the vast majority of cases. There are things that we still do not understand about obesity, and there are complex contributors in our bodies and in our environment. As such, we need to approach this issue with compassion and reject the societal idea that people struggling with weight are simply lazy or unconscientious.
I also try to maintain compassion towards people who are diet-militant, as avoidance of delicious modern treats (which often have piles of money in research in marketting behind them for the sole purpose of making them hyper-palatable) seems to sometimes require an odd trick of the mind, a weird sort of fundamentalism. If that’s what someone needs, so be it.
