Starting in 2019, the "Buick" badge on the cars will be gone. This article lists a couple BS reasons but, IMO, marketing just doesn't like the Buick name. They're partial to "Avenir", Buick's new high end nomenclature.
https://www.cnet.com/roadshow/news/buick-removes-buick-badge-2019/
Starting with the 2019 model year, Buick will remove the "Buick" script badge from the back of its vehicles. The change started with the 2019 Buick Envision, which received a mid-cycle refresh full of small quality-of-life adjustments, in addition to a lower starting price. As the 2019 model year consumes more Buicks, expect more badges to disappear.
While Buick's reasons for ditching the badge are good, saving money never hurts, either, even if it's only a few cents per car.
A cynic might just cast off this decision as a way to save a few bucks on each car, but the reasoning goes a bit deeper. "Mostly, it was for global consistency because we don't put the name badge on [Buicks] in China," said Stu Fowle, a Buick spokesman. "It also makes room if we decide to add an Avenir badge on the rear."
https://www.cnet.com/roadshow/news/buick-removes-buick-badge-2019/