Apple’s latest operating system updates have sparked a surprising debate. The introduction of the “Liquid Glass” design, intended to unify the look across iPhones, iPads, and Macs, has proven divisive, prompting Apple to add a control for its intensity. But the visual changes aren’t the only source of friction for users.
Early versions of macOS Tahoe, the newest Mac operating system, were plagued with reports of performance issues and instability. Many users criticized the aesthetic choices, particularly the prevalence of overly rounded corners. Some held off on updating, hoping for improvements in subsequent releases.
A frustrating issue emerged for those on macOS Tahoe: window resizing became unexpectedly difficult. What was once a simple click and drag from a corner now often resulted in unintended actions – dragging the entire window or highlighting content instead of resizing. The problem wasn’t a lack of skill, but a fundamental shift in how the system registered clicks.
Software developer Norbert Heger pinpointed the cause: those very rounded corners. He discovered that the design dramatically reduced the clickable area within the corner of the window itself. In previous macOS versions, a significant 62% of the clickable area resided *inside* the corner.
With the new rounded corners, the balance flipped. Heger’s analysis revealed that approximately 75% of the clickable area now exists *outside* the window, leaving only 25% within the corner itself. This explains why users find themselves clicking far outside the window before the resize cursor appears.
The effect is easily demonstrable. Move your cursor to a window corner on macOS Tahoe and observe how far you must move it beyond the window’s edge before the resize cursor activates. It’s a subtle but significant change that disrupts a long-established interaction.
While seemingly a straightforward fix for Apple, the company has yet to publicly acknowledge the issue. Whether a patch will arrive in a future update, like macOS 26.3, remains uncertain. For now, Mac users on Tahoe are left to adapt and relearn the nuances of window resizing.
Those considering an upgrade to macOS Tahoe might want to be aware of this quirk. For those content with their current macOS version, the familiar window resizing experience remains unchanged.
