If you go to the Gold Member page, the pinned items are not collapsed but listed out fully. You can toggle back and forth easily from there.
https://www.funtrivia.com/gold/ But not listed there if you are using a phone.
Tested this on my Kyocera basic phone, and verified that MiraJane is correct.
Gold Member Games, Gold Configuration, Gold Statistics, Some GM Challenges for You to Try -- these all appear.
But Pinned Items do not appear on Gold Member Central when using a mobile phone.
While we are at GM Central, I also want to mention that the toggle switches for the Favorite Bar and the What's Up Bar do not work properly. When you switch What's Up Bar, the Favorite Bar toggles. I reported this months ago, and it hasn't changed.