Safari is one example of a native AppKit “unified” titlebar+toolbar, as is the Finder.

And yep, all those listed (VS Code/Cursor, Chrome, and Firefox) are examples of fully custom third party window chrome, which is why they’re so variable. A lot of cross-platform software does this. It’s worth noting that Firefox at least lets you toggle on the standard titlebar — right click the toolbar, click “Customize Toolbar…”, and toggle the “Title Bar” checkbox in the bottom left corner.

Heh, so really I just need to go with the Linux approach and recompile everything with "fixed" titlebars.

For some reason it didn't occur to me that it's non native since they do such a good job at matching the native stuff.

On a side note, I'm glad I don't use finder or safari, because those titlebars are even larger than Chrome and Firefox! Absolute insanity.