I think I just proved my point, rather than restoring the backup from yesterday, I used PowerShell to remove the last package that was updated from the MS Store and that eliminated the problem of the incorrect Time & Language page, which now looks normal again.
Hi fg, good 🕵️♂️ job!
What is that App for? some language add-on?
Local experience language pack, whatever that means, I installed the same on another box and got the same bug.
Not sure why it was on automatically on the failing box.
In my case it is en-US, so it should be pretty normal.
I don't have that App, never seen it before.
You can try it it is in the MS Store, then you can remove it with P.S. 😉