You just need a calorie deficit to lose weight.
You need a calorie deficit if you use the keto diet.
You need a calorie deficit if you use the 5:2 diet / 16:8 diet / slimming world / weight watches / blood sugar diet... or ^any other diet you use*.
So if you have a particular desire to eat as close to zero carbs as possible, alongside high fat foods (high protein diet is key to most healthy diets, not just keto) in order to maintain your calorie deficit, then go for it.
You can lose equal amounts of weight maintaining the same calorie deficit in other ways. It depends what suits you best.
Whatever diet you use, I'd recommend becoming fluent in the language of calories. You don't necessarily need to count calories long term. But you will need to basic understanding of how many calories in the types of food you eat, and what a correct serving size (in terms of weighed out grams) for those foods looks like.
Having more of your calories from protein and fewer from carbs is the makings of a healthy diet in a very basic sence. Then ensuring a calorie deficit to lose weight. Once you've done these two things, all the rest is largely insignificant.