I notice that in most tutorial videos for unity online the option to start a new project is pretty straightforward but with unity 2021 the entire user interface is different how do you actually start a new project or 3d project in unity 2021?
Just click projects in the Hub, and then "new", then type in what you want to call it, that'll create a directory on your HD, with all your packages/assets/prefabs and all that bobbins.