Stream 5.1 Audio Update

Have had an ongoing thread, now closed, about the lack of 5.1 audio on Xfinity Stream. Checked again today on my devices and found that I now get 5.1 from programs that have it on my Roku Ultra LT.

Everything is still stereo on both my LG OLED TVs (C1 and G2).

Most content is stereo on a Fire Cube 3, but I am getting Atmos on the 4K channels that have been added for Fox and NBC.