I've just switched to Zorin 16 Core from Ubuntu 20.04.3 LTS, and I'm loving the switch so far. I've gotten everything set up as I liked so far, but there's one inconsistency that's bugging me that I can't figure out.
In Ubuntu, unread Discord notifications appear as a small number in the dock and with a small red dot in the app indicator. In Zorin, however, only the app indicator shows unread messages; nothing in the dock.
This is a stock Ubuntu 20.04 VM with just Discord installed and the unread messages badge.

This is my Zorin 16 dock with the same Discord account and same unread message. The only external GNOME extension I have installed is Dash to Dock. I'm using the first layout option with Zorin Taskbar and Zorin Menu disabled.
I've tried a bunch of botched GNOME extensions and layout fiddling and internet hunting and haven't been able to find a solution. I'm not sure if this is a theme issue, a GNOME shell issue, or what, but I'd appreciate if anyone could help me figure this out.