This is still an issue on:
Samsung Galaxy A8 (2018)
Microsoft Launcher 6.2.200902.91368
Order not changing and frequently used Icons not coming onto the screen. This is seen on both the pinned Frequently used apps page and the card in the Glance view.
On some occasions, an app will change position, but it is not consistent. I have only had one app come on the page. No apps have moved or come onto the card in the Glance view.