Looking at the empty space in the center of whatever they call the top menu bar in MacOS, on my machine, I can kinda see why they'd think it was OK to claim some territory there.

Will probably be annoying to people who use programs in fullscreen mode, I guess, unless that mode just blacks out the whole section and treats it as bezel, which I assume is what all video players will do in fullscreen mode, regardless.

Or they shrunk the existing “notch” from the full width of the display to the least-used real estate on the machine.