Exactly. Not having an alternative marketplace--and no other one exists--is anti-customer and yet, you seem to have no problem with a Steam monopoly. Why?
Having a bunch of features that I don't want or need is a waste. The Epic Store and Steam both do exactly what I need, so I don't care about any of whatever the other features are.
The "killer feature" is that they pay more to the developers, so if you are getting the exact same game on (e.g.) Steam versus Epic Games, then whomever actually made the game gets more money from the Epic sale. Isn't that a good thing?
(Note that I may be conflating the publisher with the developer, but either way, it's still the case that less money is taken by intermediaries, which is a good thing.)
I have fasted for three straight days on many occasions and it was pretty easy for me. Drinking zero-calorie beverages (coffee, tea, water) should be fine. This is not professional medical advice and definitely do not do this if you are an alcoholic, diabetic, or pregnant. Once you break the fast, do so with moderation.
No and it's not worse service.