macOS 15 (beta) has borked my desktop, changing a longstanding Dock behavior (for the worse); Apple says it’s expected behavior. :(
I wonder if anyone else is affected by this change.
I have my displays positioned as shown in the attached Screenshot, with a 4K BENQ Thunderbolt Display positioned above the internal display of an M2 MacBook Air.
Prior to macOS 15, I was able to place the dock at the bottom of the upper display using the technique described here https://apple.stackexchange.com/a/208750 This allows taking advantage of the much greater real estate on the external display.
As of macOS 15 (WWDC developer beta), this no longer works, and I can find no way to move the dock to the upper external display, and my dock remains squeezed into the tiny space available on my internal display (see attached photo).