I tend to feed my fish every other day unless I am going away, in which case I feed them daily for a week then clean up the tank and leave them for upto 4days.
I feed them every other day, although some species like goldfish need to be fed throughout the day since they don’t have an actual stomach. Otherwise, other than a few edge species, I don’t think there is any reason to feed any fish every single day (or multiple times a day).
I tend to feed them about once a day, twice if needed but never any more than that. I usually feed them not long after I get up in a morning after I have made a drink and somewhat woken up myself and then I will feed them just before I head to bed and that seems to be enough for them. I found that if I feed them anymore than that, I end up with the tank getting murky really quick and it was causing an issue so I must have been over feeding.
I feed my fish daily, but in very small amounts to avoid overfeeding. I also have one "fasting day" per week, which helps their digestion and keeps the tank cleaner.