Kitty renders some icons badly but ghostty doesn't. In a nutshell, kitty takes some rendering shortcuts that cause the bad rendering:
https://github.com/kovidgoyal/kitty/blob/master/docs/faq.rst...
People like to say that kitty is performant, but I haven't found ghostty to be otherwise.
I don't think it's accurate to characterize this as Kitty "taking rendering shortcuts." Is this what you're referring to?
> Similarly, some monospaced font families are buggy and have bold or italic faces that have characters wider than the width of the normal face, these will also result in clipping. Such issues should be reported to the font developer. Monospaced font families must have all their characters rendered within a fixed width across all faces of the font, otherwise they aren't really monospaced.