Groups Page: Clearly distinguish/separate between own groups and memberships
On the groups page groups which you created (where you are the admin) should be separate from the groups where you are just a member of (and the only option is to leave the group).
In the previous system version it already became quite confusing when you became member of many groups and also created many groups yourself. The only visually difference was/is the respective options that are offered in the UI (administrate vs. "leave"option). I don't think this is sufficient.