Years ago on Mac OS classic there was a 3rd party extension allowing the user to command click and drag anywhere on a window to move it. Implementing a native systemwide function for this would seem required now days.
Years ago there was a browser that had tabs vertically in a sidebar/drawer.
The browser also had ‘Workspaces’.
Users could have many tabs open for several concurrent, ongoing particular research topics such as when researching to buy another car, researching a new camera, researching sexy lingerie etc. The user would have a window open with all the tabs for each topic and create a Workspace for each of them, switching between each Workspaces via key commands of menu action. Shame the Safari team aren’t as enlightened.
Just like Notes, Web browsers too, are very much suited to Vertical sidebar tabs far more practical than any horizontal tab arrangement.