If I sort your sentence into Adobe InDesign, Affinity Writer, MS Phrase, or Pages, I get one thing very very similar to this in all of them:
I’ve customary UK English language settings, and these apps haven’t been configured in any particular manner. I can discover no further settings to show curved quotes whereas nonetheless having straight apostrophes in any of them.
As you say, I can ‘power’ a straight apostrophe utilizing CTRL ', and this for me works in Pages and different apps (however not in Phrase, apparently).
Nonetheless, in a few years of working in ebook publishing and typesetting, I’ve by no means heard of the (fascinating) observe of utilizing straight marks for apostrophes.
Hart’s Guidelines for Compositors and Readers (OUP) provides clear examples of curved apostrophes in contractions; as do Robert Bringhurst’s The Components of Typographic Type and The Thames & Hudson Handbook of Typography.
I’ve been unable to search out any authority that commends it: most condemn it as a vestige from the usage of typewriters.
Your assertion that it’s “right English” is, I would recommend, not the prevailing view, which could clarify why Pages, and different apps, do not observe it.
Altering the language to US English would not straighten apostrophes for me, so that might recommend that it is not native variation. (Additionally, I’ve many US books on my cabinets and I can’t discover a single one favoring this fashion.)
If you happen to actually needed this, you possibly can configure Auto-Appropriate with frequent phrases like will not, cannot; in order that the straight type would change the typed type.
