#benelli

Translations in the end note: better than nothing but can be frustrating while reading because you have to keep scrolling down and back up again and risk reading ahead by accident.

Translations in footnotes: the superior alternative to endnotes. You can actually add html footnotes in Ao3 that automatically take you back and forth from the main text and the translation! A bit fiddly, though.

All in English but it's implied or denoted when characters speak in other languages: maybe the most "honest" but also lacks color and can hinder ability to accurately capture a character's "voice"

Untranslated Italian, but it's intentional that only Italian readers will understand: awesome if that really is your intention, but if you're machine-translating, come on. Just include the original text.

A mixture of options to suit the specific needs and intentions of that moment: the nuanced answer.

My point here is not that everything must be immediately accessible to English language users at all cost.

My point is that if you're already using google translate because you don't speak Italian (or Spanish or Latin for that matter), it's adding opportunity for mistranslations to ask the reader to retranslate each line one by one and it absolutely breaks you out of the story.