Why wasn't it banned already? Government phones should be locked down and only used for work. They can TikTok on their personal devices
I used to work for a small institution a while back (not USA), they used a Word file of approved apps, authored by a non-IT employee. Their whole idea of InfoSec was equivalent to taping a water balloon to a steering wheel and calling it an airbag. Can't imagine the situation is much better in most other places. Scary really.