For what it's worth, I recently discovered that I can move windows on GNOME by holding down the Windows/super key and dragging. It's a small thing but it's actually quite nice.

What's also good, is windows/super key and dragging right mouse button -> resize window.

I don't remember if that's enabled by default, or you have to install some gnome tweaks to do it, but it is nice.

the ones for resizing and moving are quite handy indeed. Learn them. Sometimes windows have bugs and get bizarrely huge and this is a way to get them back down to a reasonable size

that has been the case in gnome since the 2.x days

edit: #dyac

This is one of my pet peeves, too. I shouldn't have to find some pixels of unused space on a title bar before clicking on it lest I bring down another menu or launch something. Microsoft programs seem to be enamored with the "search input box in the title bar" concept. Give me a magnifying glass, and drop down the input box or something. I want to be able to just grab the title bar and move the window.

For me, what you're referring to is one of the reasons I don't like to use Windows as a desktop OS (because you need to hunt for these relatively small target areas to organise multiple windows). The alternative which I greatly prefer is outlined in the other responses.

In the past, I used to disable title bars entirely even on full-sized monitors. These days it's not so easy to do that, though.

You can grab any part of the headerbar to move the window - even buttons and other widgets. It won't trigger them, it will just move the window.