1. Navigate to the nameplate settings and set the opacity to 0%
In the new UI, the group banners become completely transparent[1][2], while the prior UI did not[3][4]. Before, even at 0% in the settings, the banners would only be slightly transparent but still visible.
Interestingly, in the new UI, the group banner becomes visible again when the quick menu is opened, and you can see the detailed view of the nameplate[5]

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