That’s technically true and also the reason why a 60FPS locked game can indeed look smoother on a 120Hz display compared to 60Hz. Because 60FPS don’t always hold a steady 16.67ms between each frame so it could happen that on a 60Hz display you’ll see a frame twice and skip another one instead.

Nowadays you ideally have a monitor which supports variable refresh rate so this becomes a non issue because every single frame now gets his own refresh.

Has she tried turning it on the other side yet?

It just looks like an actual app and not like a tab in your browser(no adress bar for example), plus you can access it quickly that way without having to navigate your browser tabs

Community groups (Add communities to a group, see posts only from selected group)

That feature can’t come soon enough, not only in mobile apps but also on the website itself