Imo first person is easier to do for new writers. Third person is definetly better in some scenarios. Like when you want to focus on multiple things. First POV is better if you want to live in the mind of your mc, which some authors want you to do(me).
Sounds like you're just reading very bad smut. English Onomatopoeia is very broad, but you happen to be reading something that sounds like it is making poor use of the English language. Find something better.
I'm here. What's the problem? If you want Youno Senki type synergy between administration and the mc, you have to establish a chain of command in whatever government/society he's in and have him have a perpetual source to connect him with his higher ups like a watch or something.
This is scribble. Home of horny literature. Want to make content that gets views and is fiesty? This is the place. Specifically, this sites favorite genres are gender bender and gl, which often have a futa.