I think most Latin text out there won't use diacritics at all. I only studied it for 3 years back in high school leading to the AP exam and I don't think I was ever taught about them or saw them once. This video https://www.youtube.com/watch?v=D3bmLi1bKI0 and wiki page https://en.wikipedia.org/wiki/Apex_%28diacritic%29 were interesting. I'd bet part of the reason is just a side-effect of teaching Latin as a dead language where you never speak it / pronunciation doesn't matter. I remember very little of the language, I believe also in part because of that.