In part of population is the frequency of feeding largely irrelevant. If you maintain the same amount of calories throughout the day, your body is OK.

In some people, though, it in fact seems to be beneficial to give the body larger period of time where it doesn’t have to expend energy to power the digestive process. In very simple terms it can than “use that energy” for additional regeneration (or to burn fat, if you enter ketosis by the end of the non-eating window). I personally on most days eat only 2 meals with 0 snacks inbetween (but I admit I do put some heavy whipping cream in my teas, in case you wanted to call that a snack).

But there are also people, that don’t benefit from decreased feeding frequency, like pregnant and breastfeeding women or those with genetic metabolic predisposition towards more frequent eating.

Very special case are than people that re-trained their bodies to burn fat as primary energy source. As long as they have some body fat to burn, many of them don’t even get hungry on most days and can easily run on OMAD (one meal a day) without any detectable negatives. But than again, that is a special case and it doesn’t even apply to all of the fat-powered folks.

So to answer the title question: yes, in most people it is healthy or at least health-neutral.