But the space IS present, I have never "removed" it. And it IS displayed (even in your image, it is visible with your iOS renderer, and accurately it is thin as expected).
So you've not demonstrated any actual problem. The French typography is respected even on your iOS device ! It is thin but clearly visible on the ouput (you can measure it easily,the gap on sides of the colon or question mark is about twice larger than the average gap between 2 letters).
You use bad faith argument by pretending you don't see it, when your screenshots clearly demonstrate the opposite.
Is this a joke?
You're the one using bad faith arguments by pretending seeing an imaginary space, when my screenshots clearly demonstrate the opposite.
Here's a comparison with the thin space (top) and without any space (bottom), can you now tell me where do you see a difference? (protip: there's none)