I'll address this point, the sibling comment already addressed the other point (it wasn't meant as a criticism, by the way).
It's true that Windows 7 still get updates. However, these are mostly security updates, or bugfixes. We don't expect it to get new features. In this case, unicode font rendering. It is likely (but not guaranteed) that a user running Windows 10 would see a much better result.
Why any sane individual willingly chooses windows 10 is beyond me.
edit: Can't reply, but turning off the "phone home features" doesn't actually turn them off. It still phones home and you still get assigned an advertising ID. Sure, I could block it at the firewall potentially, but this is about taking an ideological stance.
Also, the settings in Win 10 allow you to turn off a lot of the phone home type stuff. Other than that, my opinion is that 10 mostly feels like a more polished 7.
Actually, it renders perfectly on Edge; so the problem is probably with Google Chrome.
In regards to why I think you may being downvoted:
> reads like an oxymoron
The parent was being a bit facetious. We all know they are different operating systems. But it's far less likely that an operating system that no longer receives "feature" updates would be up-to-date on its fonts.
In any case, an oxymoron is (per Google):
> a figure of speech in which apparently contradictory terms appear in conjunction (e.g., faith unfaithful kept him falsely true ).
Which I think the parent accurately described. (It's apparently contradictory, but has meaning.)
Edit: Not sure why all the downvotes, I honestly don't see how "up to date Windows 7" is an oxymoron.