CSS may handle this correctly in theory, but real implementations still have challenges with fonts that provide separate oblique and italic styles.

[1] https://stackoverflow.com/questions/60746818/how-can-i-use-b...

[2] https://stackoverflow.com/questions/58073983/how-to-show-dif...

OK, valid complaint, but honestly this is the first time I hear about the font style "oblique".

Wikipedia says

> Oblique type is a form of type that slants slightly to the right, used for the same purposes as italic type. Unlike italic type, however, it does not use different glyph shapes; it uses the same glyphs as roman type, except slanted

So the use case for both italic and oblique font styles in the same document is very... opaque to me :)

Sounds like a case of the perfect vs the good

The Victor Mono font is an example of a font that provides both. I use Italics for block comments, and Oblique for line comments. Do I need to? No. Does it look way better and make me happy? Yep.