No worries, I’m happy to see it getting some attention again.
The problem was already reproduced in the thread above, in Mac:
And Windows:
I also had a friend send me some screenshots of different browsers on Windows 10, in Chrome:
Firefox:
and Edge:
As you can see, they pretty much all suffer the clipping problem, both in the title bar and in the uncontracted thread heading. The only exception is the thread heading on Edge.
And just to let you know, despite the suggestions by several kind people in the thread, I was never able to find a satisfactory CSS solution.