I actually wish programs do not put content in the Title bar area. The title bar area is meant for users to move the Window around.

Try opening Microsoft Word, make the window narrow and drag the window. You have to hunt for a small bit of empty space in the title bar or you have to understand you could drag on the Title text, Search box and the Sign in Username, but not the Auto Save text, Upcoming Features icon, or the Ribbon Display Options icon.

I much prefer what a lot of Linux desktop environments support, which is holding down alt and clicking anywhere on a window to move it. With that + a keyboard shortcut for closing a window you can get rid of title bars on apps entirely if you want. Sadly Windows doesn't support it natively, although there's another comment on this thread talking about ways to make it work.

dejawu

I love this feature and it's since become indispensable to me. I find it pretty funny that my #1 favorite desktop UI feature is from Linux. One of the first things I'll put on a fresh install of Windows or MacOS is a utility that re-creates this behavior.

I use AltDrag on Windows (requires a quick tweak for HiDPI): https://stefansundin.github.io/altdrag/

And Easy Move + Resize on MacOS: https://github.com/dmarcotte/easy-move-resize