Mine shows the Mojave glyph as well; I’m running Catalina 10.15.2 on a mid-2012 MacBook Air.I wonder why that doesn’t show up for me...
I also noticed that the apostrophe for my Apple TV is in a different font (key encoding?) from my other devices, just like in your screenshot. Not that that’s a problem, haha... like others in this forum, I just notice these things. 😄