In every MacOS version - all the way back to the Lisa, even - items on the menu bar could be reached by clicking on the very first row of pixels on the screen. ("Rule of the infinite edges". - https://en.wikipedia.org/wiki/Fitts%27s_law )
In Tahoe, they broke that for 3rd party menu bar icons (and some Apple ones) See video: https://shot.3e.org/ss-20250918_074040.mp4
This worked fine until Tahoe.
It gets stranger, though - this is only broken if the menu bar is light-colored. That means it's broken if Reduce Transparency is turned on - OR if it's off, but you're using a very light (white or light gray) colored desktop background.
This isn't just the canary in a coal mine. The miners are dead. The mine has collapsed.
Similarly, if you decide that your button positioned at the edge of the screen actually shouldn't be an infinitely long click target, you aren't breaking Fitts' Law. You might be doing it with Fitts' Law in mind, or not, but Paul Fitts' ghost isn't waiting in the shadows to prosecute small buttons. Some actions should be difficult!
With that said, they definitely screwed up here, but I don't like when we're like "but Fitts' Law" and act like that proves our point on its own. If they wanted, they could "Fitts' Law" right back at you.