Hello Sarah
I am not a professional in this field. I have this wall mount at home because I bought it a few months ago with my new Samsung TV, but then changed my mind at short notice.
In the enclosure of the TV mount I find a note that the mount is also for the 2016-2019 K-Series and that it can be used for the KU6000, KU6300, KU6400 model series. So it is quite possible that the bracket will fit your TV. If you search the internet, you will find information that the mount is suitable for all TVs from 2016 to 2019, including Curved TVs.
My unused mount can be purchased from Digitec if you are interested.