I can assure that it is not so difficult to learn a bit of css/html so You can edit Your books in the way You like. I bought my Kindle when I was 50 years old and I knew nothing about css/html, now I am able to do some basic changes in my books, so seldom I am unsatisfied with them.
And preferences in book formatting are pretty individual: this is the reason way in this forum there are some people (like me) the reformat the books they buy.
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